XR88C681CP/28 EXAR [Exar Corporation], XR88C681CP/28 Datasheet - Page 94

• Manufacturer Part Number: XR88C681CP/28
• Description: CMOS Dual Channel UART (DUART)
• Manufacturer: EXAR [Exar Corporation]

Rev. 2.11
OP0 - OP7
IP0 - IP6
-WR or
-RD or
-CS
-CS
Interrupt
Output
-RD or
-CS or
-WR
t
PS
OLD DATA
Figure 54. Port Timing
Figure 55. Interrupt Timing
94
t
PD
t
IR
t
PH
NEW DATA