M38261ECFS datasheet(19/91 Pages) RENESAS

19 / 91 page

Rev.1.00

Sep 06, 2006

page 19 of 88

REJ03B0181-0100

3826 Group (One Time PROM version)

Fig. 15 Port block diagram (2)

(6) Port P45

(7) Port P46

(8) Port P47

(9) Ports P52,P53

(10) Ports P50,P51

PWM function enable bit

PWM output

(11) Port P54

Pulse output mode

Timer output

CNTR0 interrupt input

Pull-up control

Direction

Data bus

Port latch

Serial I/O1 output

P45/TxD P-channel output disable bit

Serial I/O1 enable bit

Transmit enable bit

Serial I/O1 clock output

Direction

Data bus

Port latch

Pull-up control

Serial I/O1 enable bit

Serial I/O1 clock input

Serial I/O1 synchronous

clock selection bit

Serial I/O1 mode selection bit

Serial I/O1 enable bit

Pull-up control

Serial I/O1 mode selection bit

Serial I/O1 enable bit

SRDY1 output enable bit

Direction

Data bus

Port latch

Serial I/O1 ready output

Direction

Data bus

Port latch

Pull-up control

Real time port control bit

Real time port data

Pull-up control

Direction

Data bus

Port latch

Pull-up control

Direction

Data bus

Port latch

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