hd66100 Renesas Electronics Corporation., hd66100 Datasheet - Page 84

• Manufacturer Part Number: hd66100
• Description: H8/3867 Series
• Manufacturer: Renesas Electronics Corporation.

2. Interrupt enable register 1 (IENR1)
IENR1 is an 8-bit read/write register that enables or disables interrupt requests.
Bit 7: Timer A interrupt enable (IENTA)
Bit 7 enables or disables timer A overflow interrupt requests.
Bit 7
IENTA
0
1
Bit 6: Reserved bit
Bit 6 is a readable/writable reserved bit. It is initialized to 0 by a reset.
Bit 5: Wakeup interrupt enable (IENWP)
Bit 5 enables or disables WKP
Bit 5
IENWP
0
1
Bits 4 to 0: IRQ
Bits 4 to 0 enable or disable IRQ
Bit n
IENn
0
1
Bit
Initial value
Read/Write
Description
Disables timer A interrupt requests
Enables timer A interrupt requests
Description
Disables WKP
Enables WKP
Description
Disables interrupt requests from pin IRQn
Enables interrupt requests from pin IRQn
4
to IRQ
IENTA
R/W
7
0
0
interrupt enable (IEN4 to IEN0)
7
7
to WKP
R/W
to WKP
7
—
6
0
to WKP
4
to IRQ
0
0
IENWP
interrupt requests
interrupt requests
R/W
0
0
5
0
interrupt requests.
interrupt requests.
IEN4
R/W
4
0
IEN3
R/W
3
0
IEN2
R/W
2
0
IEN1
R/W
1
0
(initial value)
(initial value)
(initial value)
(n = 4 to 0)
IEN0
R/W
0
0
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