Altera PCI Compiler - Manual (Page 179)

Altera Corporation User Guide Version 11.1 3–105
October 2011
Functional Description
Figure 3–36 shows a 32-bit single cycle memory read master transaction.
The transaction shown in Figure 3–36 is the same as shown in
Figure 3–35 , except that in Figure 3–36 the local side master interface
requests a 32-bit transaction by asserting lm_req32n. This figure applies
to both the pci_mt64 and pci_mt32 MegaCore functions, excluding the
64-bit extension signals as noted for pci_mt32.
Figure 3–36. 32-Bit PCI & 32-Bit Local-Side Single-Cycle Memory Read Master Transaction
Note to Figure 3–36 :
(1) This signal is not applicable to the pci_mt32 MegaCore function.
2 3 4 5 6 7 9 10
clk
reqn
8 1
gntn
ad[31..0]
cben[3..0]
par
framen
(1) req64n
irdyn
devseln
(1) ack64n
trdyn
stopn
Adr
6
Adr-PAR
BE_L
Z
D0_L Z 0
0
Z
D0-L-PAR
l_adi[31..0] Adr
l_dato[31..0] D0_L
(1) l_dato[63..32]
lm_req32n
lm_lastn
lm_adr_ackn
lm_rdyn
lm_tsr[9..0] 000 001 004 002 008
(1) l_ldat_ackn
(1) l_hdat_ackn
lm_ackn
lm_dxfrn
Z
000 108
l_cbeni[3..0]
(1) l_cbeni[7..4]
BE_L 6