4513_03 Datasheet, PDF (100/210 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCOMPUTER

HARDWARE
CONTROL REGISTERS
Key-on wakeup control register K0
at reset : 00002
at RAM back-up : state retained
Pins P12 and P13 key-on wakeup
K03
control bit
Pins P10 and P11 key-on wakeup
K02
control bit
Pins P02 and P03 key-on wakeup
K01
control bit
Pins P00 and P01 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
Pull-up control register PU0
at reset : 00002
at RAM back-up : state retained
PU03
PU02
PU01
PU00
Pins P12 and P13 pull-up transistor
control bit
Pins P10 and P11 pull-up transistor
control bit
Pins P02 and P03 pull-up transistor
control bit
Pins P00 and P01 pull-up transistor
control bit
0
Pull-up transistor OFF
1
Pull-up transistor ON
0
Pull-up transistor OFF
1
Pull-up transistor ON
0
Pull-up transistor OFF
1
Pull-up transistor ON
0
Pull-up transistor OFF
1
Pull-up transistor ON
Direction register FR0 (Note 2)
at reset : 00002
at RAM back-up : state retained
0
FR03 Port P53 input/output control bit
1
0
FR02 Port P52 input/output control bit
1
0
FR01 Port P51 input/output control bit
1
0
FR00 Port P50 input/output control bit
1
Notes 1: “R” represents read enabled, and “W” represents write enabled.
2: The 4513 Group does not have the direction register FR0.
Port P53 input
Port P53 output
Port P52 input
Port P52 output
Port P51 input
Port P51 output
Port P50 input
Port P50 output
R/W
R/W
W
4513/4514 Group User’s Manual
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