Hayes Microcomputer Products RCV56HCF User Manual
Page 46
RCV56HCF PCI/CardBus Modem Designer’s Guide
ROCKWELL PROPRIETARY INFORMATION
1129
3-24
a. Read
DA0 - DA4
DRD#
DD0-DD7
ISDN_CS#
1123F3-8 EB
Read data valid
t AS
t RDH
t RW
t RDA
t CSS
t CSH
t AH
a. Write
DA0 - DA4
DWR#
DD0-DD7
ISDN_CS#
Write data valid
t AS
t WDH
t WW
t CSS
t CSH
t AH
t WDS
Figure 3-7. Waveforms - External Device Bus Interface