| CA1 | ||||
| Always Input | ||||
| CRA-1: Edge Sets IRQA1 | CRA-0: Interrupt Mask | |||
| 0: Falling | 0: Disables | |||
| 1: Rising | 1: Enabled | |||
| Note: You cannot read the state of CA1. | ||||
| You can only tell if an active | ||||
| edge has occurred by reading IRQA1. | ||||
| CB1 - Input | ||||
| Always Input | ||||
| CRB-1: Edge Sets IRQB1 | CRB-0: Interrupt Mask | |||
| 0: Falling | 0: Disables | |||
| 1: Rising | 1: Enabled | |||
| Note: You cannot read the state of CB1. | ||||
| You can only tell if an active | ||||
| edge has occurred by reading IRQB1. | ||||
| CA2 | ||||
| CRA-5 = 0 | CRA-5 = 1 | |||
| CA2 - Input | CA-2 Output | |||
| CR4-1: Edge Sets IRQA2 | CRA-3: Interrupt Mask | CRA-4 = 0 | CRA-4 = 1 | |
| 0: Falling | 0: Disabled | Handshaking | General Purpose Output | |
| 1: Rising | 1: Enabled | CRA-3: Mode | CRA-3: Level | |
| Note: You cannot read the state of CA2. | 0: Interlock | 0: Low | ||
| You can only tell if an active | 1: Pulse | 1: High | ||
| edge has occurred by reading IRQA2. | ||||
| CB2 | ||||
| CRB-5 = 0 | CRB-5 = 1 | |||
| CB2 - Input | CB-2 Output | |||
| CRB-4: Edge Sets IRQB2 | CRB-3: Interrupt Mask | CRB-4 = 0 | CRB-4 = 1 | |
| 0: Falling | 0: Disabled | Handshaking | General Purpose Output | |
| 1: Rising | 1: Enabled | CRB-3: Mode | CRB-3: Level | |
| Note: You cannot read the state of CB2. | 0: Interlock | 0: Low | ||
| You can only tell if an active | 1: Pulse | 1: High | ||
| edge has occurred by reading IRQB2. | ||||