4559 Datasheet, PDF (10/148 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4559 Group
Register Y
Decoder
CLD instruction
SD instruction
RD instruction
S
RG2
RQ 1
0
Sub-clock input
Quartz-crystal
oscillation circuit
Register Y
Decoder
CLD instruction
SD instruction
RD instruction
RG2
S
RG2
RQ 1
0
(Note 1)
XCIN/D6 (Note 2)
(Note 1)
(Note 1)
XCOUT/D7 (Note 2)
(Note 1)
Clock input for timer 1 event count
Timer 1 underflow signal
W41
D
TQ
R
W12
PWMOD
SCP instruction
RCP instruction
SQ
R
(Note 1)
C/CNTR (Note 2)
(Note 1)
W10
W11
Notes 1.
This symbol represents a parasitic diode on the port.
2. Applied potential to these ports must be VDD or less.
Fig 4. Port block diagram (2)
Rev.1.04 Aug 23, 2007 Page 10 of 146
REJ03B0188-0104