ADuCM320 Hardware Reference Manual
UG-498
Rev. C | Page 55 of 196
Bits
Bit Name
Description
Reset
Access
3
IRQ4EN
External Interrupt 4 enable bit.
0x0
RW
0: External Interrupt 4 disabled
1: External Interrupt 4 enabled
[2:0]
IRQ4MDE
External Interrupt 4 mode registers.
0x0
RW
000: rising edge
001: falling edge
010: rising or falling edge
011: high level
100: low level
101: falling edge (same as 001)
110: rising or falling edge (same as 010)
111: high level (same as 011)
External Interrupt Configuration Register 2
Address: 0x40002428, Reset: 0x0000, Name: EI2CFG
Table 59. Bit Descriptions for EI2CFG
Bits
Bit Name
Description
Reset
Access
15:4
RESERVED
Reserved.
0x0
3
IRQ8EN
External Interrupt 8 enable bit.
0x0
RW
0: External Interrupt 8 disabled
1: External Interrupt 8 enabled
[2:0]
IRQ8MDE
External Interrupt 8 mode registers.
0x0
RW
000: rising edge
001: falling edge
010: rising or falling edge
011: high level
100: low level
101: falling edge (same as 001)
110: rising or falling edge (same as 010)
111: high level (same as 011)
External Interrupt Clear Register
Address: 0x40002430, Reset: 0x0000, Name: EICLR
Table 60. Bit Descriptions for EICLR
Bits
Bit Name
Description
Reset
Access
[15:9]
RESERVED
Reserved.
0x0
RW
8
IRQ8
External interrupt 8. Set to 1 to clear an internal interrupt flag. Cleared
automatically by hardware.
0x0
RW
7
IRQ7
External interrupt 7. Set to 1 to clear an internal interrupt flag. Cleared
automatically by hardware.
0x0
RW
6
RESERVED
Reserved.
0x0
RW
5
IRQ5
External interrupt 5. Set to 1 to clear an internal interrupt flag. Cleared
automatically by hardware.
0x0
RW
4
IRQ4
External interrupt 4. Set to 1 to clear an internal interrupt flag. Cleared
automatically by hardware.
0x0
RW
3
RESERVED
0x0
RW
2
IRQ2
External interrupt 2. Set to 1 to clear an internal interrupt flag. Cleared
automatically by hardware.
0x0
RW
1
IRQ1
External interrupt 1. Set to 1 to clear an internal interrupt flag. Cleared
automatically by hardware.
0x0
RW
0
IRQ0
External interrupt 0. Set to 1 to clear an internal interrupt flag. Cleared
automatically by hardware.
0x0
RW