Realtek RTL8169 Manual page 72

PCI Transactions
CLK
FRAMEB
AD31-0
C/BE3-0B
IRDYB
TRDYB
DEVSELB
CLK
FRAMEB
AD31-0
C/BE3-0B
IRDYB
TRDYB
DEVSELB
2002/03/27
1 2 3
ADDRESS DATA
BUS CMD BE3-0B
1 2 3
ADDRESS
DATA
BUS CMD BE3-0B
Fig. 11.3.3.3.2 I/O Write
4 5 6
I/O Read
4 5 6
72
7 8 9
7 8 9
RTL8169
10
10
Rev.1.21