
3–114 User Guide Version 11.1 Altera Corporation
PCI Compiler October 2011
Master Mode Operation
Figure 3–39 shows the same transaction as in Figure 3–42, but the local
side master interface requests a 32-bit transaction by asserting
lm_req32n. This figure applies to both pci_mt64 and pci_mt32,
excluding the 64-bit extension signals as noted for pci_mt32. The
pci_mt64 function does not assert req64n on the PCI side. Therefore,
the upper address ad[63..32] and the upper command/byte enables
cben[7..4] are invalid.
Figure 3–39. 32-Bit PCI & 32-Bit Local-Side Burst Memory Write Master Transaction
Note to Figure 3–39:
(1) This signal is not applicable to the pci_mt32 MegaCore function.
2
3
4
5
6
7
9
10
clk
reqn
8
11
1
gntn
ad[31..0]
cben[3..0]
par
framen
(1) req64n
irdyn
devseln
(1) ack64n
trdyn
stopn
Adr
7
Adr-PAR
0
0
D1_L
D2_L
lm_req32n
lm_lastn
lm_adr_ackn
lm_rdyn
lm_tsr[9..0]
000
001
004
002
108
008
000
(1) l_ldat_ackn
(1) l_hdat_ackn
lm_ackn
lm_dxfrn
BE_L
D1-L-PAR
D2-L-PAR
Z
Z
D0_L
D0-L-PAR
l_adi[31..0]
Adr
7
(1) l_adi[63..32]
D0_L
D1_L
D2_L
l_cbeni[3..0]
BE_L
(1) l_cbeni[7..4]
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