Burst memory read master transactions – Altera PCI Compiler User Manual
Page 169
Altera Corporation
User Guide Version 11.1
3–95
October 2011
Functional Description
Burst Memory Read Master Transactions
shows the waveform for a 64-bit zero-wait state burst
memory read master transaction. In this transaction, three data words are
transferred from the PCI side to the local side. The 64-bit extension signals
are not applicable to the pci_mt32 function.
Figure 3–31. Zero-Wait State Burst Memory Read Master Transaction
Notes to
:
(1)
This signal is not applicable to the pci_mt32 MegaCore function.
(2)
For pci_mt32, lm_req32n should be substituted for lm_req64n for 32-bit master transactions.
2
3
4
5
6
7
9
10
12
clk
reqn
8
11
1
gntn
ad[31..0]
(1) ad[63..32]
cben[3..0]
(1) cben[7..4]
par
(1) par64
framen
(1) req64n
irdyn
devseln
(1) ack64n
trdyn
stopn
Adr
6
Adr-PAR
BE_L
Z
D0_L
D0_H
D0-H-PAR
Z
0
0
0
0
Z
Z
BE_H
Z
D1_L
D2_L
D1_H
D2_H
13
Z
Z
Z
D1-H-PAR
D2-H-PAR
D0-H-PAR
D2-H-PAR
D1-H-PAR
l_adi[31..0]
Adr
l_cbeni[3..0]
(1) l_cbeni[7..4]
6
BE_L
BE_H
l_dato[31..0]
D0_L
D1_L
D2_L
(1) l_dato[63..32]
D0_H
D1_H
D2_H
(1), (2) lm_req64n
lm_lastn
lm_adr_ackn
lm_rdyn
lm_tsr[9..0]
000
001
004
002
200
308
008
208
000
(1) l_ldat_ackn
(1) l_hdat_ackn
lm_ackn
lm_dxfrn