4552 Datasheet, PDF (9/145 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4552 Group
Register Y
Decoder
SD instruction
RD instruction
CLD
instruction
S
RQ
RG2
1
0
Register Y
Sub-clock input
Quartz-crystal
oscillation circuit
Decoder
RG2
SD instruction
RD instruction
CLD
instruction
S
RQ
RG2
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
D
W41
PWMOD
SCP instruction
T _RQ
W12
SQ
RCP instruction
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.
Port block diagram (2)
Rev.3.02 Dec 22, 2006 page 9 of 142
REJ03B0023-0302