leon3ft_soc.vhd
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r513 | ----------------------------------------------------------------------------- | |
-- LEON3 Demonstration design | |||
-- Copyright (C) 2004 Jiri Gaisler, Gaisler Research | |||
-- | |||
-- This program is free software; you can redistribute it and/or modify | |||
-- it under the terms of the GNU General Public License as published by | |||
-- the Free Software Foundation; either version 2 of the License, or | |||
-- (at your option) any later version. | |||
-- | |||
-- This program is distributed in the hope that it will be useful, | |||
-- but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||
-- GNU General Public License for more details. | |||
-- | |||
-- You should have received a copy of the GNU General Public License | |||
-- along with this program; if not, write to the Free Software | |||
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |||
------------------------------------------------------------------------------ | |||
LIBRARY ieee; | |||
USE ieee.std_logic_1164.ALL; | |||
LIBRARY grlib; | |||
USE grlib.amba.ALL; | |||
USE grlib.stdlib.ALL; | |||
LIBRARY techmap; | |||
USE techmap.gencomp.ALL; | |||
LIBRARY gaisler; | |||
USE gaisler.memctrl.ALL; | |||
USE gaisler.leon3.ALL; | |||
USE gaisler.uart.ALL; | |||
USE gaisler.misc.ALL; | |||
USE gaisler.spacewire.ALL; -- PLE | |||
LIBRARY esa; | |||
USE esa.memoryctrl.ALL; | |||
LIBRARY lpp; | |||
USE lpp.lpp_memory.ALL; | |||
USE lpp.lpp_ad_conv.ALL; | |||
USE lpp.lpp_lfr_pkg.ALL; | |||
USE lpp.iir_filter.ALL; | |||
USE lpp.general_purpose.ALL; | |||
USE lpp.lpp_leon3_soc_pkg.ALL; | |||
ENTITY leon3ft_soc IS | |||
GENERIC ( | |||
fabtech : INTEGER := apa3e; | |||
memtech : INTEGER := apa3e; | |||
padtech : INTEGER := inferred; | |||
clktech : INTEGER := inferred; | |||
disas : INTEGER := 0; -- Enable disassembly to console | |||
dbguart : INTEGER := 0; -- Print UART on console | |||
pclow : INTEGER := 2; | |||
-- | |||
clk_freq : INTEGER := 25000; --kHz | |||
-- | |||
NB_CPU : INTEGER := 1; | |||
ENABLE_FPU : INTEGER := 1; | |||
FPU_NETLIST : INTEGER := 1; | |||
ENABLE_DSU : INTEGER := 1; | |||
ENABLE_AHB_UART : INTEGER := 1; | |||
ENABLE_APB_UART : INTEGER := 1; | |||
ENABLE_IRQMP : INTEGER := 1; | |||
ENABLE_GPT : INTEGER := 1; | |||
-- | |||
NB_AHB_MASTER : INTEGER := 11; | |||
NB_AHB_SLAVE : INTEGER := 1; | |||
NB_APB_SLAVE : INTEGER := 2 | |||
); | |||
PORT ( | |||
clk : IN STD_ULOGIC; | |||
reset : IN STD_ULOGIC; | |||
errorn : OUT STD_ULOGIC; | |||
-- UART AHB --------------------------------------------------------------- | |||
ahbrxd : IN STD_ULOGIC; -- DSU rx data | |||
ahbtxd : OUT STD_ULOGIC; -- DSU tx data | |||
-- UART APB --------------------------------------------------------------- | |||
urxd1 : IN STD_ULOGIC; -- UART1 rx data | |||
utxd1 : OUT STD_ULOGIC; -- UART1 tx data | |||
-- RAM -------------------------------------------------------------------- | |||
address : OUT STD_LOGIC_VECTOR(19 DOWNTO 0); | |||
data : INOUT STD_LOGIC_VECTOR(31 DOWNTO 0); | |||
nSRAM_BE0 : OUT STD_LOGIC; | |||
nSRAM_BE1 : OUT STD_LOGIC; | |||
nSRAM_BE2 : OUT STD_LOGIC; | |||
nSRAM_BE3 : OUT STD_LOGIC; | |||
nSRAM_WE : OUT STD_LOGIC; | |||
nSRAM_CE : OUT STD_LOGIC; | |||
nSRAM_OE : OUT STD_LOGIC; | |||
-- APB -------------------------------------------------------------------- | |||
apbi_ext : OUT apb_slv_in_type; | |||
apbo_ext : IN soc_apb_slv_out_vector(NB_APB_SLAVE-1+5 DOWNTO 5); | |||
-- AHB_Slave -------------------------------------------------------------- | |||
ahbi_s_ext : OUT ahb_slv_in_type; | |||
ahbo_s_ext : IN soc_ahb_slv_out_vector(NB_AHB_SLAVE-1+3 DOWNTO 3); | |||
-- AHB_Master ------------------------------------------------------------- | |||
ahbi_m_ext : OUT AHB_Mst_In_Type; | |||
ahbo_m_ext : IN soc_ahb_mst_out_vector(NB_AHB_MASTER-1+NB_CPU DOWNTO NB_CPU) | |||
); | |||
END; | |||
ARCHITECTURE Behavioral OF leon3ft_soc IS | |||
----------------------------------------------------------------------------- | |||
-- CONFIG ------------------------------------------------------------------- | |||
----------------------------------------------------------------------------- | |||
-- Clock generator | |||
CONSTANT CFG_CLKMUL : INTEGER := (1); | |||
CONSTANT CFG_CLKDIV : INTEGER := (1); -- divide 50MHz by 2 to get 25MHz | |||
CONSTANT CFG_OCLKDIV : INTEGER := (1); | |||
CONSTANT CFG_CLK_NOFB : INTEGER := 0; | |||
-- LEON3 processor core | |||
CONSTANT CFG_LEON3 : INTEGER := 1; | |||
CONSTANT CFG_NCPU : INTEGER := NB_CPU; | |||
CONSTANT CFG_NWIN : INTEGER := (8); -- to be compatible with BCC and RCC | |||
CONSTANT CFG_V8 : INTEGER := 0; | |||
CONSTANT CFG_MAC : INTEGER := 0; | |||
CONSTANT CFG_SVT : INTEGER := 0; | |||
CONSTANT CFG_RSTADDR : INTEGER := 16#00000#; | |||
CONSTANT CFG_LDDEL : INTEGER := (1); | |||
CONSTANT CFG_NWP : INTEGER := (0); | |||
CONSTANT CFG_PWD : INTEGER := 1*2; | |||
CONSTANT CFG_FPU : INTEGER := ENABLE_FPU *(8 + 16 * FPU_NETLIST); | |||
-- 1*(8 + 16 * 0) => grfpu-light | |||
-- 1*(8 + 16 * 1) => netlist | |||
-- 0*(8 + 16 * 0) => No FPU | |||
-- 0*(8 + 16 * 1) => No FPU; | |||
CONSTANT CFG_ICEN : INTEGER := 1; | |||
CONSTANT CFG_ISETS : INTEGER := 1; | |||
CONSTANT CFG_ISETSZ : INTEGER := 4; | |||
CONSTANT CFG_ILINE : INTEGER := 4; | |||
CONSTANT CFG_IREPL : INTEGER := 0; | |||
CONSTANT CFG_ILOCK : INTEGER := 0; | |||
CONSTANT CFG_ILRAMEN : INTEGER := 0; | |||
CONSTANT CFG_ILRAMADDR : INTEGER := 16#8E#; | |||
CONSTANT CFG_ILRAMSZ : INTEGER := 1; | |||
CONSTANT CFG_DCEN : INTEGER := 1; | |||
CONSTANT CFG_DSETS : INTEGER := 1; | |||
CONSTANT CFG_DSETSZ : INTEGER := 4; | |||
CONSTANT CFG_DLINE : INTEGER := 4; | |||
CONSTANT CFG_DREPL : INTEGER := 0; | |||
CONSTANT CFG_DLOCK : INTEGER := 0; | |||
CONSTANT CFG_DSNOOP : INTEGER := 0 + 0 + 4*0; | |||
CONSTANT CFG_DLRAMEN : INTEGER := 0; | |||
CONSTANT CFG_DLRAMADDR : INTEGER := 16#8F#; | |||
CONSTANT CFG_DLRAMSZ : INTEGER := 1; | |||
CONSTANT CFG_MMUEN : INTEGER := 0; | |||
CONSTANT CFG_ITLBNUM : INTEGER := 2; | |||
CONSTANT CFG_DTLBNUM : INTEGER := 2; | |||
CONSTANT CFG_TLB_TYPE : INTEGER := 1 + 0*2; | |||
CONSTANT CFG_TLB_REP : INTEGER := 1; | |||
CONSTANT CFG_DSU : INTEGER := ENABLE_DSU; | |||
CONSTANT CFG_ITBSZ : INTEGER := 0; | |||
CONSTANT CFG_ATBSZ : INTEGER := 0; | |||
-- AMBA settings | |||
CONSTANT CFG_DEFMST : INTEGER := (0); | |||
CONSTANT CFG_RROBIN : INTEGER := 1; | |||
CONSTANT CFG_SPLIT : INTEGER := 0; | |||
CONSTANT CFG_AHBIO : INTEGER := 16#FFF#; | |||
CONSTANT CFG_APBADDR : INTEGER := 16#800#; | |||
-- DSU UART | |||
CONSTANT CFG_AHB_UART : INTEGER := ENABLE_AHB_UART; | |||
-- LEON2 memory controller | |||
CONSTANT CFG_MCTRL_SDEN : INTEGER := 0; | |||
-- UART 1 | |||
CONSTANT CFG_UART1_ENABLE : INTEGER := ENABLE_APB_UART; | |||
CONSTANT CFG_UART1_FIFO : INTEGER := 1; | |||
-- LEON3 interrupt controller | |||
CONSTANT CFG_IRQ3_ENABLE : INTEGER := ENABLE_IRQMP; | |||
-- Modular timer | |||
CONSTANT CFG_GPT_ENABLE : INTEGER := ENABLE_GPT; | |||
CONSTANT CFG_GPT_NTIM : INTEGER := (2); | |||
CONSTANT CFG_GPT_SW : INTEGER := (8); | |||
CONSTANT CFG_GPT_TW : INTEGER := (32); | |||
CONSTANT CFG_GPT_IRQ : INTEGER := (8); | |||
CONSTANT CFG_GPT_SEPIRQ : INTEGER := 1; | |||
CONSTANT CFG_GPT_WDOGEN : INTEGER := 0; | |||
CONSTANT CFG_GPT_WDOG : INTEGER := 16#0#; | |||
----------------------------------------------------------------------------- | |||
----------------------------------------------------------------------------- | |||
-- SIGNALs | |||
----------------------------------------------------------------------------- | |||
CONSTANT maxahbmsp : INTEGER := CFG_NCPU + CFG_AHB_UART + NB_AHB_MASTER; | |||
-- CLK & RST -- | |||
SIGNAL clk2x : STD_ULOGIC; | |||
SIGNAL clkmn : STD_ULOGIC; | |||
SIGNAL clkm : STD_ULOGIC; | |||
SIGNAL rstn : STD_ULOGIC; | |||
SIGNAL rstraw : STD_ULOGIC; | |||
SIGNAL pciclk : STD_ULOGIC; | |||
SIGNAL sdclkl : STD_ULOGIC; | |||
SIGNAL cgi : clkgen_in_type; | |||
SIGNAL cgo : clkgen_out_type; | |||
--- AHB / APB | |||
SIGNAL apbi : apb_slv_in_type; | |||
SIGNAL apbo : apb_slv_out_vector := (OTHERS => apb_none); | |||
SIGNAL ahbsi : ahb_slv_in_type; | |||
SIGNAL ahbso : ahb_slv_out_vector := (OTHERS => ahbs_none); | |||
SIGNAL ahbmi : ahb_mst_in_type; | |||
SIGNAL ahbmo : ahb_mst_out_vector := (OTHERS => ahbm_none); | |||
--UART | |||
SIGNAL ahbuarti : uart_in_type; | |||
SIGNAL ahbuarto : uart_out_type; | |||
SIGNAL apbuarti : uart_in_type; | |||
SIGNAL apbuarto : uart_out_type; | |||
--MEM CTRLR | |||
SIGNAL memi : memory_in_type; | |||
SIGNAL memo : memory_out_type; | |||
SIGNAL wpo : wprot_out_type; | |||
SIGNAL sdo : sdram_out_type; | |||
--IRQ | |||
SIGNAL irqi : irq_in_vector(0 TO CFG_NCPU-1); | |||
SIGNAL irqo : irq_out_vector(0 TO CFG_NCPU-1); | |||
--Timer | |||
SIGNAL gpti : gptimer_in_type; | |||
SIGNAL gpto : gptimer_out_type; | |||
--DSU | |||
SIGNAL dbgi : l3_debug_in_vector(0 TO CFG_NCPU-1); | |||
SIGNAL dbgo : l3_debug_out_vector(0 TO CFG_NCPU-1); | |||
SIGNAL dsui : dsu_in_type; | |||
SIGNAL dsuo : dsu_out_type; | |||
----------------------------------------------------------------------------- | |||
SIGNAL nSRAM_CE_s : STD_LOGIC; | |||
BEGIN | |||
---------------------------------------------------------------------- | |||
--- Reset and Clock generation ------------------------------------- | |||
---------------------------------------------------------------------- | |||
cgi.pllctrl <= "00"; | |||
cgi.pllrst <= rstraw; | |||
rst0 : rstgen PORT MAP (reset, clkm, cgo.clklock, rstn, rstraw); | |||
clkgen0 : clkgen -- clock generator | |||
GENERIC MAP (clktech, CFG_CLKMUL, CFG_CLKDIV, CFG_MCTRL_SDEN, | |||
CFG_CLK_NOFB, 0, 0, 0, clk_freq, 0, 0, CFG_OCLKDIV) | |||
PORT MAP (clk, clk, clkm, clkmn, clk2x, sdclkl, pciclk, cgi, cgo); | |||
---------------------------------------------------------------------- | |||
--- LEON3 processor / DSU / IRQ ------------------------------------ | |||
---------------------------------------------------------------------- | |||
l3 : IF CFG_LEON3 = 1 GENERATE | |||
cpu : FOR i IN 0 TO CFG_NCPU-1 GENERATE | |||
u0 : leon3ft | |||
GENERIC MAP ( | |||
hindex => i, --: integer; | |||
fabtech => fabtech, | |||
memtech => memtech, | |||
nwindows => CFG_NWIN, | |||
dsu => CFG_DSU, | |||
fpu => CFG_FPU, | |||
v8 => CFG_V8, | |||
cp => 0, | |||
mac => CFG_MAC, | |||
pclow => pclow, | |||
notag => 0, | |||
nwp => CFG_NWP, | |||
icen => CFG_ICEN, | |||
irepl => CFG_IREPL, | |||
isets => CFG_ISETS, | |||
ilinesize => CFG_ILINE, | |||
isetsize => CFG_ISETSZ, | |||
isetlock => CFG_ILOCK, | |||
dcen => CFG_DCEN, | |||
drepl => CFG_DREPL, | |||
dsets => CFG_DSETS, | |||
dlinesize => CFG_DLINE, | |||
dsetsize => CFG_DSETSZ, | |||
dsetlock => CFG_DLOCK, | |||
dsnoop => CFG_DSNOOP, | |||
ilram => CFG_ILRAMEN, | |||
ilramsize => CFG_ILRAMSZ, | |||
ilramstart => CFG_ILRAMADDR, | |||
dlram => CFG_DLRAMEN, | |||
dlramsize => CFG_DLRAMSZ, | |||
dlramstart => CFG_DLRAMADDR, | |||
mmuen => CFG_MMUEN, | |||
itlbnum => CFG_ITLBNUM, | |||
dtlbnum => CFG_DTLBNUM, | |||
tlb_type => CFG_TLB_TYPE, | |||
tlb_rep => CFG_TLB_REP, | |||
lddel => CFG_LDDEL, | |||
disas => disas, | |||
tbuf => CFG_ITBSZ, | |||
pwd => CFG_PWD, | |||
svt => CFG_SVT, | |||
rstaddr => CFG_RSTADDR, | |||
smp => CFG_NCPU-1, | |||
iuft => 2, --: integer range 0 to 4; | |||
fpft => 1, --: integer range 0 to 4; | |||
cmft => 1, --: integer range 0 to 1; | |||
iuinj => 0, --: integer; | |||
ceinj => 0, --: integer range 0 to 3; | |||
cached => 0, --: integer; | |||
netlist => 0, --: integer; | |||
scantest => 0, --: integer; | |||
mmupgsz => 0, --: integer range 0 to 5; | |||
bp => 1) --: integer); | |||
PORT MAP ( | |||
clk => clkm, | |||
rstn => rstn, | |||
ahbi => ahbmi, | |||
ahbo => ahbmo(i), | |||
ahbsi => ahbsi, | |||
ahbso => ahbso, | |||
irqi => irqi(i), | |||
irqo => irqo(i), | |||
dbgi => dbgi(i), | |||
dbgo => dbgo(i), | |||
gclk => clkm | |||
); | |||
END GENERATE; | |||
errorn_pad : outpad GENERIC MAP (tech => padtech) PORT MAP (errorn, dbgo(0).error); | |||
dsugen : IF CFG_DSU = 1 GENERATE | |||
dsu0 : dsu3 -- LEON3 Debug Support Unit | |||
GENERIC MAP (hindex => 2, haddr => 16#900#, hmask => 16#F00#, | |||
ncpu => CFG_NCPU, tbits => 30, tech => memtech, irq => 0, kbytes => CFG_ATBSZ) | |||
PORT MAP (rstn, clkm, ahbmi, ahbsi, ahbso(2), dbgo, dbgi, dsui, dsuo); | |||
dsui.enable <= '1'; | |||
dsui.break <= '0'; | |||
END GENERATE; | |||
END GENERATE; | |||
nodsu : IF CFG_DSU = 0 GENERATE | |||
ahbso(2) <= ahbs_none; | |||
dsuo.tstop <= '0'; | |||
dsuo.active <= '0'; | |||
END GENERATE; | |||
irqctrl : IF CFG_IRQ3_ENABLE /= 0 GENERATE | |||
irqctrl0 : irqmp -- interrupt controller | |||
GENERIC MAP (pindex => 2, paddr => 2, ncpu => CFG_NCPU) | |||
PORT MAP (rstn, clkm, apbi, apbo(2), irqo, irqi); | |||
END GENERATE; | |||
irq3 : IF CFG_IRQ3_ENABLE = 0 GENERATE | |||
x : FOR i IN 0 TO CFG_NCPU-1 GENERATE | |||
irqi(i).irl <= "0000"; | |||
END GENERATE; | |||
apbo(2) <= apb_none; | |||
END GENERATE; | |||
---------------------------------------------------------------------- | |||
--- Memory controllers --------------------------------------------- | |||
---------------------------------------------------------------------- | |||
memctrlr : mctrl GENERIC MAP ( | |||
hindex => 0, | |||
pindex => 0, | |||
paddr => 0, | |||
srbanks => 1 | |||
) | |||
PORT MAP (rstn, clkm, memi, memo, ahbsi, ahbso(0), apbi, apbo(0), wpo, sdo); | |||
memi.brdyn <= '1'; | |||
memi.bexcn <= '1'; | |||
memi.writen <= '1'; | |||
memi.wrn <= "1111"; | |||
memi.bwidth <= "10"; | |||
bdr : FOR i IN 0 TO 3 GENERATE | |||
data_pad : iopadv GENERIC MAP (tech => padtech, width => 8) | |||
PORT MAP ( | |||
data(31-i*8 DOWNTO 24-i*8), | |||
memo.data(31-i*8 DOWNTO 24-i*8), | |||
memo.bdrive(i), | |||
memi.data(31-i*8 DOWNTO 24-i*8)); | |||
END GENERATE; | |||
addr_pad : outpadv GENERIC MAP (width => 20, tech => padtech) | |||
PORT MAP (address, memo.address(21 DOWNTO 2)); | |||
nSRAM_CE_s <= NOT(memo.ramsn(0)); | |||
rams_pad : outpad GENERIC MAP (tech => padtech) PORT MAP (nSRAM_CE, nSRAM_CE_s); | |||
oen_pad : outpad GENERIC MAP (tech => padtech) PORT MAP (nSRAM_OE, memo.ramoen(0)); | |||
nBWE_pad : outpad GENERIC MAP (tech => padtech) PORT MAP (nSRAM_WE, memo.writen); | |||
nBWa_pad : outpad GENERIC MAP (tech => padtech) PORT MAP (nSRAM_BE0, memo.mben(3)); | |||
nBWb_pad : outpad GENERIC MAP (tech => padtech) PORT MAP (nSRAM_BE1, memo.mben(2)); | |||
nBWc_pad : outpad GENERIC MAP (tech => padtech) PORT MAP (nSRAM_BE2, memo.mben(1)); | |||
nBWd_pad : outpad GENERIC MAP (tech => padtech) PORT MAP (nSRAM_BE3, memo.mben(0)); | |||
---------------------------------------------------------------------- | |||
--- AHB CONTROLLER ------------------------------------------------- | |||
---------------------------------------------------------------------- | |||
ahb0 : ahbctrl -- AHB arbiter/multiplexer | |||
GENERIC MAP (defmast => CFG_DEFMST, split => CFG_SPLIT, | |||
rrobin => CFG_RROBIN, ioaddr => CFG_AHBIO, | |||
ioen => 0, nahbm => maxahbmsp, nahbs => 8) | |||
PORT MAP (rstn, clkm, ahbmi, ahbmo, ahbsi, ahbso); | |||
---------------------------------------------------------------------- | |||
--- AHB UART ------------------------------------------------------- | |||
---------------------------------------------------------------------- | |||
dcomgen : IF CFG_AHB_UART = 1 GENERATE | |||
dcom0 : ahbuart | |||
GENERIC MAP (hindex => maxahbmsp-1, pindex => 4, paddr => 4) | |||
PORT MAP (rstn, clkm, ahbuarti, ahbuarto, apbi, apbo(4), ahbmi, ahbmo(maxahbmsp-1)); | |||
dsurx_pad : inpad GENERIC MAP (tech => padtech) PORT MAP (ahbrxd, ahbuarti.rxd); | |||
dsutx_pad : outpad GENERIC MAP (tech => padtech) PORT MAP (ahbtxd, ahbuarto.txd); | |||
END GENERATE; | |||
nouah : IF CFG_AHB_UART = 0 GENERATE apbo(4) <= apb_none; END GENERATE; | |||
---------------------------------------------------------------------- | |||
--- APB Bridge ----------------------------------------------------- | |||
---------------------------------------------------------------------- | |||
apb0 : apbctrl -- AHB/APB bridge | |||
GENERIC MAP (hindex => 1, haddr => CFG_APBADDR) | |||
PORT MAP (rstn, clkm, ahbsi, ahbso(1), apbi, apbo); | |||
---------------------------------------------------------------------- | |||
--- GPT Timer ------------------------------------------------------ | |||
---------------------------------------------------------------------- | |||
gpt : IF CFG_GPT_ENABLE /= 0 GENERATE | |||
timer0 : gptimer -- timer unit | |||
GENERIC MAP (pindex => 3, paddr => 3, pirq => CFG_GPT_IRQ, | |||
sepirq => CFG_GPT_SEPIRQ, sbits => CFG_GPT_SW, ntimers => CFG_GPT_NTIM, | |||
nbits => CFG_GPT_TW) | |||
PORT MAP (rstn, clkm, apbi, apbo(3), gpti, gpto); | |||
gpti.dhalt <= dsuo.tstop; | |||
gpti.extclk <= '0'; | |||
END GENERATE; | |||
notim : IF CFG_GPT_ENABLE = 0 GENERATE apbo(3) <= apb_none; END GENERATE; | |||
---------------------------------------------------------------------- | |||
--- APB UART ------------------------------------------------------- | |||
---------------------------------------------------------------------- | |||
ua1 : IF CFG_UART1_ENABLE /= 0 GENERATE | |||
uart1 : apbuart -- UART 1 | |||
GENERIC MAP (pindex => 1, paddr => 1, pirq => 2, console => dbguart, | |||
fifosize => CFG_UART1_FIFO) | |||
PORT MAP (rstn, clkm, apbi, apbo(1), apbuarti, apbuarto); | |||
apbuarti.rxd <= urxd1; | |||
apbuarti.extclk <= '0'; | |||
utxd1 <= apbuarto.txd; | |||
apbuarti.ctsn <= '0'; | |||
END GENERATE; | |||
noua0 : IF CFG_UART1_ENABLE = 0 GENERATE apbo(1) <= apb_none; END GENERATE; | |||
------------------------------------------------------------------------------- | |||
-- AMBA BUS ------------------------------------------------------------------- | |||
------------------------------------------------------------------------------- | |||
-- APB -------------------------------------------------------------------- | |||
apbi_ext <= apbi; | |||
all_apb : FOR I IN 0 TO NB_APB_SLAVE-1 GENERATE | |||
max_16_apb : IF I + 5 < 16 GENERATE | |||
apbo(I+5) <= apbo_ext(I+5); | |||
END GENERATE max_16_apb; | |||
END GENERATE all_apb; | |||
-- AHB_Slave -------------------------------------------------------------- | |||
ahbi_s_ext <= ahbsi; | |||
all_ahbs : FOR I IN 0 TO NB_AHB_SLAVE-1 GENERATE | |||
max_16_ahbs : IF I + 3 < 16 GENERATE | |||
ahbso(I+3) <= ahbo_s_ext(I+3); | |||
END GENERATE max_16_ahbs; | |||
END GENERATE all_ahbs; | |||
-- AHB_Master ------------------------------------------------------------- | |||
ahbi_m_ext <= ahbmi; | |||
all_ahbm : FOR I IN 0 TO NB_AHB_MASTER-1 GENERATE | |||
max_16_ahbm : IF I + CFG_NCPU + CFG_AHB_UART < 16 GENERATE | |||
ahbmo(I + CFG_NCPU) <= ahbo_m_ext(I+CFG_NCPU); | |||
END GENERATE max_16_ahbm; | |||
END GENERATE all_ahbm; | |||
END Behavioral; |