4524_M Datasheet, PDF (83/310 Pages) Renesas Technology Corp – 4-BIT CISC SINGLE-CHIP MICROCOMPUTER 720 FAMILY / 4500 SERIES

4524 Group
HARDWARE
FUNCTION BLOCK OPERATIONS
Table 23 Key-on wakeup control register, pull-up control register and interrupt control register
Key-on wakeup control register K0
at reset : 00002
at power down : state retained
Port P03 key-on wakeup
K03
control bit
Port P02 key-on wakeup
K02
control bit
Port P01 key-on wakeup
K01
control bit
Port P00 key-on wakeup
K00
control bit
0
Key-on wakeup not used
1
Key-on wakeup used
0
Key-on wakeup not used
1
Key-on wakeup used
0
Key-on wakeup not used
1
Key-on wakeup used
0
Key-on wakeup not used
1
Key-on wakeup used
Key-on wakeup control register K1
Port P13 key-on wakeup
K13
control bit
Port P12 key-on wakeup
K12
control bit
Port P11 key-on wakeup
K11
control bit
Port P10 key-on wakeup
K10
control bit
at reset : 00002
at power down : state retained
0
Key-on wakeup used
1
Key-on wakeup not used
0
Key-on wakeup not used
1
Key-on wakeup used
0
Key-on wakeup not used
1
Key-on wakeup used
0
Key-on wakeup not used
1
Key-on wakeup used
Key-on wakeup control register K2
at reset : 00002
at power down : state retained
INT1 pin
0
K23
return condition selection bit
1
INT1 pin
0
K22
key-on wakeup control bit
1
INT0 pin
0
K21
return condition selection bit
1
INT0 pin
0
K20
key-on wakeup control bit
1
Note: “R” represents read enabled, and “W” represents write enabled.
Return by level
Return by edge
Key-on wakeup not used
Key-on wakeup used
Return by level
Return by edge
Key-on wakeup not used
Key-on wakeup used
R/W
TAK0/
TK0A
R/W
TAK1/
TK1A
R/W
TAK2/
TK2A
Rev.2.00 Aug, 06 2004
REJ09B0107-0200Z
1-70