XR88C192IV-F Datasheet, PDF (26/32 Pages) Exar Corporation – DUAL UNIVERSAL ASYNCHRONOUS RECEIVER AND TRANSMITTER

XR88C92/192
A3-A0
-IOR/
-IOW
-CS
D7-D0
(Read)
D7-D0
(Write)
T_AS
T_RWS
T_AH
T_RWH
T_CSL
T_DD
Valid Data
T_DS
Valid Data
T_CSH
T_DF
T_DH
Read/Write Cycle Timing
Figure 3: Bus Timing (Read/Write cycle)
IP6-IP0
T9s
T9h
-IOR
Figure 4: Input Port Timing
XR92-IP
-IOW
OP7-OP0
Old Data
T10d
New Data
XR92-OP
Figure 5: Output Port Timing
Rev. 1.33
26