SPRUJ42E March 2022 – October 2024 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
PRODUCTION DATA
The IIR is a read-only register, which provides the source of the interrupt in a prioritized manner.
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Instance Name | Physical Address |
---|---|
UART0 | 5230 0008h |
UART1 | 5230 1008h |
UART2 | 5230 2008h |
UART3 | 5230 3008h |
UART4 | 5230 4008h |
UART5 | 5230 5008h |
31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 |
RESERVED_24 | |||||||
R | |||||||
0h | |||||||
23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
RESERVED_24 | |||||||
R | |||||||
0h | |||||||
15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
RESERVED_24 | |||||||
R | |||||||
0h | |||||||
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
FCR_MIRROR | IT_TYPE | IT_PENDING | |||||
R | R | R | |||||
0h | 0h | 1h |
Bit | Field | Type | Reset | Description |
---|---|---|---|---|
31:8 | RESERVED_24 | R | 0h | |
7:6 | FCR_MIRROR | R | 0h | Mirror the contents of FCR[0] on both bits. |
5:1 | IT_TYPE | R | 0h | 16 CTS, RTS, DSR change state from active (low) to inactive (high). Priority=6 8 Xoff/Special character. Priority=5 6 Rx timeout. Priority=2 3 Receiver line status error. Priority=3 2 RHR interrupt. Priority=2 1 THR interrupt. Priority=3 0 Modem Interrupt. Priority=4 |
0 | IT_PENDING | R | 1h | 1 No interrupt is pending 0 An interrupt is pending |