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4559 Datasheet, PDF (6/148 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
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4559 Group
MULTIFUNCTION
Table 4 Pin description
Pin
Multifunction
Pin
Multifunction
Pin
Multifunction
Pin
Multifunction
P00
SEG16
SEG16
P00
P30
SEG28
SEG28
P30
P01
SEG17
SEG17
P01
P31
SEG29
SEG29
P31
P02
SEG18
SEG18
P02
P32
SEG30
SEG30
P32
P03
SEG19
SEG19
P03
P33
SEG31
SEG31
P33
P10
SEG20
SEG20
P10
D5
INT
INT
D5
P11
SEG21
SEG21
P11
D6
XCIN
XCIN
D6
P12
SEG22
SEG22
P12
D7
XCOUT
XCOUT
D7
P13
SEG23
SEG23
P13
C
CNTR
CNTR
C
P20
SEG24
SEG24
P20
SEG0
VLC3
VLC3
SEG0
P21
SEG25
SEG25
P21
SEG1
VLC2
VLC2
SEG1
P22
SEG26
SEG26
P22
SEG2
VLC1
VLC1
SEG2
P23
SEG27
SEG27
P23
Note 1. Pins except above have just single function.
Note 2. The input/output of D5 can be used even when INT is selected.
Be careful when using inputs of both INT and D5 since the input threshold value of INT pin is different from that of port D5.
Note 3. “H“ output function of port C can be used even when the CNTR (output) is used.
PORT FUNCTION
Table 5
Port
Port D
Port P0
Port P1
Port P2
Port P3
Port C
Port function
Pin
D0−D4,
D5/INT
D6/XCIN,
D7/XCOUT
P00/SEG16,
P01/SEG17,
P02/SEG18,
P03/SEG19
P10/SEG20,
P11/SEG21,
P12/SEG22,
P13/SEG23
P20/SEG24,
P21/SEG25,
P22/SEG26,
P23/SEG27,
P30/SEG28,
P31/SEG29,
P32/SEG30,
P33/SEG31
C/CNTR
Input
Output
I/O
(6)
Output
(2)
I/O
(4)
Output
structure
N-channel
open-drain/
CMOS
N-channel
open-drain
N-channel
open-drain/
CMOS
I/O N-channel
(4) open-drain/
CMOS
I/O N-channel
(4) open-drain/
CMOS
I/O N-channel
(4) open-drain/
CMOS
Output CMOS
(1)
I/O unit
1 bit
4 bits
4 bits
4 bits
4 bits
1 bit
Control
instructions
SD, RD
SZD, CLD
Control
registers
FR1, FR2,
I1, K2
Remark
Programmable output
structure selection function
RG
−
OP0A
IAP0
PU0, K0,
FR0, C1
Programmable pull-up, key-
on wakeup and output
structure selection function
OP1A
IAP1
PU1, K0,
FR0, C2
Programmable pull-up, key-
on wakeup and output
structure selection function
OP2A
IAP2
PU2, K1,
FR3, L3
Programmable pull-up, key-
on wakeup and output
structure selection function
OP3A
IAP3
PU3, K2, K3,
FR2, C3
Programmable pull-up, key-
on wakeup and output
structure selection function
RCP
SCP
W1, W2, W4 −
Rev.1.04 Aug 23, 2007 Page 6 of 146
REJ03B0188-0104
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