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VME64x core
Commit 3d03e19d authored by Tristan Gingold's avatar Tristan Gingold
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minor reformatting.

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hdl/vme64x-core/rtl/VME_bus.vhd
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...@@ -291,28 +291,22 @@ begin ...@@ -291,28 +291,22 @@ begin
-- --
-- Bytes position on VMEbus: -- Bytes position on VMEbus:
-- --
-- A24-A31 | A16-A23 | A08-A15 | A00-A07 | D24-D31 | D16-D23 | D08-D15 | D00-D07 -- A24-31 | A16-23 | A08-15 | A00-07 | D24-31 | D16-23 | D08-15 | D00-07
-- | | | | | | BYTE(0) | -- | | | | | | BYTE 0 |
-- | | | | | | | BYTE(1) -- | | | | | | | BYTE 1
-- | | | | | | BYTE(2) | -- | | | | | | BYTE 2 |
-- | | | | | | | BYTE(3) -- | | | | | | | BYTE 3
-- | | | | | | BYTE(0) | BYTE(1) -- | | | | | | BYTE 0 | BYTE 1
-- | | | | | | BYTE(2) | BYTE(3) -- | | | | | | BYTE 2 | BYTE 3
-- | | | | BYTE(0)| BYTE(1) | BYTE(2) | BYTE(3) -- | | | | BYTE 0 | BYTE 1 | BYTE 2 | BYTE 3
-- BYTE(0)| BYTE(1) | BYTE(2) | BYTE(3) | BYTE(4)| BYTE(5) | BYTE(6) | BYTE(7) -- BYTE 0 | BYTE 1 | BYTE 2 | BYTE 3 | BYTE 4 | BYTE 5 | BYTE 6 | BYTE 7
with s_typeOfDataTransferSelect select s_typeOfDataTransfer <= with s_typeOfDataTransferSelect select s_typeOfDataTransfer <=
D08_0 when "01010", D08_0 when "01010" | "01011",
D08_0 when "01011", D08_1 when "10010" | "10011",
D08_1 when "10010", D08_2 when "01110" | "01111",
D08_1 when "10011", D08_3 when "10110" | "10111",
D08_2 when "01110", D16_01 when "00010" | "00011",
D08_2 when "01111", D16_23 when "00110" | "00111",
D08_3 when "10110",
D08_3 when "10111",
D16_01 when "00010",
D16_01 when "00011",
D16_23 when "00110",
D16_23 when "00111",
D32 when "00001", D32 when "00001",
D64 when "00000", D64 when "00000",
TypeError when others; TypeError when others;
...@@ -446,7 +440,8 @@ begin ...@@ -446,7 +440,8 @@ begin
end if; end if;
when DECODE_ACCESS => when DECODE_ACCESS =>
-- check if this slave board is addressed and if it is, check the access mode -- check if this slave board is addressed and if it is, check
-- the access mode
s_decode <= '1'; s_decode <= '1';
s_DSlatch <= '1'; s_DSlatch <= '1';
-- uncomment for using 2e modes: -- uncomment for using 2e modes:
...@@ -455,11 +450,12 @@ begin ...@@ -455,11 +450,12 @@ begin
--s_mainFSMstate <= WAIT_FOR_DS_2e; --s_mainFSMstate <= WAIT_FOR_DS_2e;
if s_conf_sel = '1' or s_card_sel = '1' then if s_conf_sel = '1' or s_card_sel = '1' then
-- conf_sel = '1' it means CR/CSR space addressed -- conf_sel = '1' it means CR/CSR space addressed
-- card_sel = '1' it means WB application addressed -- card_sel = '1' it means WB application addressed
s_mainFSMstate <= WAIT_FOR_DS; s_mainFSMstate <= WAIT_FOR_DS;
else else
s_mainFSMstate <= DECODE_ACCESS; s_mainFSMstate <= DECODE_ACCESS;
-- another board will answer; wait here the rising edge on VME_AS_i -- another board will answer; wait here the rising edge on
-- VME_AS_i
end if; end if;
when WAIT_FOR_DS => when WAIT_FOR_DS =>
......
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