Host Protocols Direct Protocol PROTOCOL class HOST EVENT POLL
April 13, 2023 at 2:39 AMHOST_EVENT_POLL instruction
Use the HOST_EVENT_POLL instruction to receive the device’s event message, when the device has asserted its /WAKEUP line.
INS value
INS = FE
Command
| Field | Value | Explanations |
|---|---|---|
| CLA | 00 |
Class = PROTOCOL |
| INS | FE |
Instruction = HOST_EVENT_POLL |
| Data | (empty) |
Response
| Field | Value | Explanations |
|---|---|---|
| CLA | Depends on event | |
| STA | Depends on event | |
| Data | Depends on event |
Warning only for this instruction, the PCB of the Response has Channel (bit 6) set to 1 (interrupt).