4554 Datasheet, PDF (71/138 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4554 Group
PU03
PU02
PU01
PU00
Pull-up control register PU0
Port P03 pull-up transistor
control bit
Port P02 pull-up transistor
control bit
Port P01 pull-up transistor
control bit
Port P00 pull-up transistor
control bit
at reset : 00002
at power down : state retained
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
PU13
PU12
PU11
PU10
Pull-up control register PU1
Port P13 pull-up transistor
control bit
Port P12 pull-up transistor
control bit
Port P11 pull-up transistor
control bit
Port P10 pull-up transistor
control bit
at reset : 00002
at power down : state retained
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
Port output structure control register FR0
FR03
FR02
FR01
FR00
Ports P12, P13 output structure selection
bit
Ports P10, P11 output structure selection
bit
Ports P02, P03 output structure selection
bit
Ports P00, P01 output structure selection
bit
Port output structure control register FR1
FR13 Port D3 output structure selection bit
FR12 Port D2 output structure selection bit
FR11 Port D1 output structure selection bit
FR10 Port D0 output structure selection bit
at reset : 00002
at power down : state retained
0
N-channel open-drain output
1
CMOS output
0
N-channel open-drain output
1
CMOS output
0
N-channel open-drain output
1
CMOS output
0
N-channel open-drain output
1
CMOS output
at reset : 00002
at power down : state retained
0
N-channel open-drain output
1
CMOS output
0
N-channel open-drain output
1
CMOS output
0
N-channel open-drain output
1
CMOS output
0
N-channel open-drain output
1
CMOS output
Port output structure control register FR2
at reset : 00002
at power down : state retained
0
FR23 Port D7/CNTR0 output structure selection bit
1
0
FR22 Port D6 output structure selection bit
1
0
FR21 Port D5 output structure selection bit
1
0
FR20 Port D4 output structure selection bit
1
Note: “R” represents read enabled, and “W” represents write enabled.
N-channel open-drain output
CMOS output
N-channel open-drain output
CMOS output
N-channel open-drain output
CMOS output
N-channel open-drain output
CMOS output
R/W
TAPU0/
TPU0A
R/W
TAPU1/
TPU1A
W
TFR0A
W
TFR1A
W
TFR2A
Rev.3.00 Aug 06, 2004 page 71 of 136
REJ03B0043-0300Z