Hitachi H8/3637 Hardware Manual page 371

IENR1—Interrupt enable register 1
Bit
IENTA
Initial value
Read/Write R/W
SCI1 interrupt enable
0 Disables SCI1 interrupts
1 Enables SCI1 interrupts
Timer A interrupt enable
0 Disables timer A interrupts
1 Enables timer A interrupts
370
7 6 5
IENS1 IENWP
0 0 0
R/W
R/W
Wakeup interrupt enable
0 Disables interrupt requests from WKP to WKP
1 Enables interrupt requests from WKP to WKP
H'F3
4 3
IEN4 IEN3
0 0
R/W R/W
IRQ to IRQ interrupt enable
4 0
0 Disables interrupt requests from IRQ to IRQ
1 Enables interrupt requests from IRQ to IRQ
7
7
System control
2 1
IEN2 IEN1 IEN0
0 0
R/W R/W R/W
4
4
0
0
0
0
0
0