IRQ
From F256 Foenix
Interrupts[edit | edit source]
F256K or F256Jr[edit | edit source]
| Bit | Name | Purpose |
|---|---|---|
| 0x01 | INT_VKY_SOF | TinyVicky Start Of Frame interrupt |
| 0x02 | INT_VKY_SOL | TinyVicky Start Of Line interrupt |
| 0x04 | INT_PS2_KBD | PS/2 keyboard event |
| 0x08 | INT_PS2_MOUSE | PS/2 mouse event |
| 0x10 | INT_TIMER_0 | TIMER0 has reached its target value |
| 0x20 | INT_TIMER_1 | TIMER1 has reached its target value |
| 0x40 | RESERVED | |
| 0x80 | Cartridge | Interrupt asserted by the cartidge |
| Bit | Name | Purpose |
|---|---|---|
| 0x01 | INT_UART | The UART is ready to receive or send data |
| 0x02 | RESERVED | |
| 0x04 | RESERVED | |
| 0x08 | RESERVED | |
| 0x10 | INT_RTC | Event from the real time clock chip |
| 0x20 | INT_VIA0 | Event from the 65C22 VIA chip |
| 0x40 | INT_VIA1 | F256k Only: Local keyboard |
| 0x80 | INT_SDC_INS | User has inserted an SD card |
| Bit | Name | Purpose |
|---|---|---|
| 0x01 | IEC_DATA_i | IEC Data In |
| 0x02 | IEC_CLK_i | IEC Clock In |
| 0x04 | IEC_ATN_i | IEC ATN In |
| 0x08 | IEC_SREQ_i | IEC SREQ In |
| 0x10 | RESERVED | |
| 0x20 | RESERVED | |
| 0x40 | RESERVED | |
| 0x80 | RESERVED |
F256K2 or F256Jr2[edit | edit source]
| Bit | Name | Purpose |
|---|---|---|
| 0x01 | INT_VKY_SOF | TinyVicky Start Of Frame interrupt |
| 0x02 | INT_VKY_SOL | TinyVicky Start Of Line interrupt |
| 0x04 | INT_PS2_KBD | PS/2 keyboard event |
| 0x08 | INT_PS2_MOUSE | PS/2 mouse event |
| 0x10 | INT_TIMER_0 | TIMER0 has reached its target value |
| 0x20 | INT_TIMER_1 | TIMER1 has reached its target value |
| 0x40 | DMA0_INT | DMA interrupt |
| 0x80 | Cartridge | Interrupt asserted by the cartidge |
| Bit | Name | Purpose |
|---|---|---|
| 0x01 | INT_UART | The UART is ready to receive or send data |
| 0x02 | COLLISION INT2 | VICKY collision |
| 0x04 | COLLISION INT3 | VICKY collision |
| 0x08 | COLLISION INT4 | VICKY collision |
| 0x10 | INT_RTC | Event from the real time clock chip |
| 0x20 | INT_VIA0 | Event from the 65C22 VIA chip |
| 0x40 | INT_VIA1 | F256k Only: Local keyboard |
| 0x80 | INT_SDC_INS | User has inserted an SD card |
| Bit | Name | Purpose |
|---|---|---|
| 0x01 | IEC_DATA_i | IEC Data In (K2 Only) |
| 0x02 | IEC_CLK_i | IEC Clock In (K2 Only) |
| 0x04 | IEC_ATN_i | IEC ATN In (K2 Only) |
| 0x08 | IEC_SREQ_i | IEC SREQ In (K2 Only) |
| 0x10 | RESERVED | |
| 0x20 | WIFI IRQ | (Module Generated) |
| 0x40 | HDMI IRQ | (From Sii9022) (K2 Only) |
| 0x80 | RESERVED |
| Bit | Name | Purpose |
|---|---|---|
| 0x01 | WIFI FIFO | Empty Interrupt (Triggers when Data in FIFO (after being emptied)) |
| 0x02 | MIDI FIFO | Empty Interrupt (Triggers when Data in FIFO (after being emptied)) |
| 0x04 | Optical Keyboard FIFO | Empty Interrupt (Triggers when Data in FIFO (after being emptied)) (K2 Only) |
| 0x08 | RESERVED | |
| 0x10 | RESERVED | |
| 0x20 | RESERVED | |
| 0x40 | RESERVED | |
| 0x80 | RESERVED |
