7643_06 Datasheet, PDF (127/424 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCOMPUTER

7643 Group
APPLICATION
2.1 I/O Port
Interrupt request register C
b7 b6 b5 b4 b3 b2 b1 b0
0
Interrupt request register C
(IREQC : address 0416)
b
Name
Functions
0 Timer 3 interrupt request 0 : No interrupt request issued
bit
1 : Interrupt request issued
1 _{Nothing is arranged for these bits.}
When these bits are read out, the contents are undefined.
2 ^{These bits are “0” at write.}
3 Serial I/O interrupt request 0 : No interrupt request issued
bit
1 : Interrupt request issued
4 Nothing is arranged for these bits.
When these bits are read out, the contents are undefined.
5 ^{These bits are “0” at write.}
6 Key input interrupt request 0 : No interrupt request issued
bit
1 : Interrupt request issued
7 Nothing is arranged for this bit.
Fix this bit to “0”.
✽: “0” can be set by software, but “1” cannot be set.
At reset R W
0
✽
0
0
0
✽
0
0
0
✽
0
Fig. 2.1.8 Structure of Interrupt request register C
Interrupt control register C
b7 b6 b5 b4 b3 b2 b1 b0
0 00 00
Interrupt control register C
(ICONC : address 0716)
b
Name
Functions
0 Timer 3 interrupt enable bit 0 : Interrupt disabled
1 : Interrupt enabled
1 Nothing is arranged for these bits.
2 ^{Fix these bits to “0”.}
3 Serial I/O interrupt enable 0 : Interrupt disabled
bit
1 : Interrupt enabled
4 _{Nothing is arranged for these bits.}
5 Fix these bits to “0”.
6 Key input interrupt enable 0 : Interrupt disabled
bit
1 : Interrupt enabled
7 _{Nothing is arranged for this bit.}
Fix this bit to “0”.
At reset R W
0
0
0
0
0
0
0
0
Fig. 2.1.9 Structure of Interrupt control register C
Rev.2.00 Aug 28, 2006 page 6 of 202
REJ09B0133-0200