RDC
®
RISC DSP Controller
R8810LV
RDC Semiconductor Co.
Rev:1.2
Subject to change without notice
44
(Master Mode)
The Interrupt Request register is a read-only register. For internal interrupts (SPI, WD, D1, D0, and TMR), the corresponding
bit is set to 1 when the device requests an interrupt. The bit is reset during the internally generated interrupt acknowledge. For
INT4-INT0 external interrupts, the corresponding bit (I4-I0) reflects the current value of the external signal.
Bit 15-11 :
Reserved.
Bit 10 :
SPI
, Serial Port Interrupt Request. Indicates the interrupt state of the serial port.
Bit 9 : WD
, Watchdog Timer Interrupt Request.
Set 1: The Watchdog Timer has an interrupt pending.
Bit 8-4 : I4-I0
, Interrupt Requests.
Set 1: The corresponding INT pin has an interrupt pending.
Bit 3-2 : D1-D0
, DMA Channel Interrupt Request.
Set 1: The corresponding DMA channel has an interrupt pending.
Bit 1:
Reserved.
Bit 0 : TMR
, Timer Interrupt Request.
Set 1: The timer control unit has an interrupt pending.
(Slave Mode)
The Interrupt Request register is a read-only register. For internal interrupts (D1, D0, TMR2, TMR1, and TMR0), the
corresponding bit is set to 1 when the device requests an interrupt. The bit is reset during the internally generated interrupt
acknowledge.
Bit 15-6 :
Reserved.
Bit 5-4 :
TMR2/TMR1
, Timer2/Timer1 Interrupt Request.
Set 1: Indicates the state of any interrupt requests form the associated timer.
Bit 3-2 : D1-D0
, DMA Channel Interrupt Request.
Set 1: Indicates the corresponding DMA channel has an interrupt pending.
Interrupt Request Register
Offset : 2Eh
0
Reset Value :
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Reserved
D0
Res
TMR
D1
I0
I1
I2
I3
I4
WD
SPI
Interrupt Request Register
Offset : 2Eh
0
Reset Value : 0000h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Reserved
D0
Res
TMR0
D1
TMR1
TMR2