63
Interrupt Enable Register 1 (IENR1)
IENR1 is an 8-bit read/write register that enables or disables interrupt requests.
Bit
7
6
5
4
3
2
1
0
IENTA
IENS1
IENWP
IEN4
IEN3
IEN2
IEN1
IEN0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 7—Timer A Interrupt Enable (IENTA): Bit 7 enables or disables timer A overflow interrupt
requests.
Bit 7: IENTA
Description
0
Disables timer A interrupts
(initial value)
1
Enables timer A interrupts
Bit 6—SCI1 Interrupt Enable (IENS1): Bit 6 enables or disables SCI1 transfer complete
interrupt requests.
Bit 6: IENS1
Description
0
Disables SCI1 interrupts
(initial value)
1
Enables SCI1 interrupts
Bit 5—Wakeup Interrupt Enable (IENWP): Bit 5 enables or disables WKP
7
to WKP
0
interrupt
requests.
Bit 5: IENWP
Description
0
Disables interrupt requests from
WKP
7
to
WKP
0
(initial value)
1
Enables interrupt requests from
WKP
7
to
WKP
0
Bits 4 to 0: IRQ
4
to IRQ
0
Interrupt Enable (IEN4 to IEN0): Bits 4 to 0 enable or disable IRQ
4
to IRQ
0
interrupt requests.
Bits 4 to 0:
IEN4 to IEN0
Description
0
Disables interrupt requests from
IRQ
4
to
IRQ
0
(initial value)
1
Enables interrupt requests from
IRQ
4
to
IRQ
0