w65c22 Western Design Center, Inc., w65c22 Datasheet - Page 13

• Manufacturer Part Number: w65c22
• Description: W65c22n And W65c22s Versatile Interface Adapter Via Datasheet
• Manufacturer: Western Design Center, Inc.

* If the CA2/CB2 control in the PCR is selected as "independent" interrupt input, then reading or writing
the output register ORA/ORB will not clear the flag bit. Instead, the bit must be cleared by writing into
the IFR, as described previously.
7
0
0
0
0
1
1
1
1
3
0
0
0
0
1
1
1
1
6
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
2
5
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
1
0 = Negative Active Edge
1 = Positive Active Edge
0 = Negative Active Edge
1 = Positive Active Edge
CB1 Interrupt Control
CA1 Interrupt Control
Operation
Input-negative active edge
Independent interrupt input-negative edge*
Input-positive active edge
Independent interrupt input-positive edge*
Handshake output
Pulse output
Low output
High output
Operation
Input-negative active edge
Independent
edge*
Input-positive active edge
Independent
edge*
Handshake output
Pulse output
Low output
High output
CB2 Control
CA2 Control
interrupt
interrupt
input-negative
input-positive
13