Analog Devices ADuCM320 Hardware Reference Manual page 156

UG-498
Capture Event Function
There are several interrupt events that can be captured by the general-purpose timers. These events are shown in Table 220. Any one of
the events associated with a general-purpose timer can cause a capture of the 16-bit TxVAL register into the 16-bit TxCAP register.
TxCON has a 4-bit field that can be used to select which event to capture.
When the selected interrupt event occurs, the TxVAL register is copied into the TxCAP register. TxSTA[1] is set, indicating that a capture
event is pending. The bit is cleared by writing 1 to TxCLRI[1]. The TxCAP register also holds its value and cannot be overwritten until a 1
is written to TxCLRI[1].
Table 220. Capture Event Function
Event Select Bits
(TxCON.EVENT), TxCON[11:8]
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
T0 Capture Source
Wake-up timer
External Interrupt 0
External Interrupt 1
External Interrupt 2
Reserved
External Interrupt 4
External Interrupt 5
Reserved
External Interrupt 7
External Interrupt 8
Watchdog timer
Reserved
Reserved
Low Voltage Analog Die Interrupt 0
MDIO
GP Timer 1
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ADuCM320 Hardware Reference Manual
T1 Capture Source T2 Capture Source
External Interrupt 4 External Interrupt 7
External Interrupt 5 External Interrupt 8
Reserved SPI1
Flash controller I2C0 slave
UART I2C0 master
SPI0 PLA 2
PLA 0 PLA 3
PLA 1 PWM trip
DMA error PWM0
DMA done (any) PWM1
Reserved PWM2
Reserved PWM3
Reserved Low Voltage Analog Die Interrupt 1
I2C1 slave External Interrupt 0
I2C1 master External Interrupt 1
GP Timer 2 GP Timer 1