M38861F1AHP データシートの表示（PDF） - MITSUBISHI ELECTRIC

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M38861F1AHP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI ELECTRIC  

MITSUBISHI MICROCOMPUTERS

3886 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

(25) Ports P74,P75

Direction

register

Data bus

Port latch

T4

T5

INT31,INT41 interrupt input

(27) Port P77

I2C-BUS interface

enable bit

Direction

register

Data bus

Port latch

SCL output

T6

SCL input

(26) Port P76

I2C-BUS interface

enable bit

Direction

register

Data bus

Port latch

SDA output

(28) Port P8 S0

S1

R

Data bus buffer enable bit

Direction

register

Data bus

Port latch

T6

SDA input

Output buffer 0

Status register 0

Output buffer 1

Status register 1

T3

Input buffer 0

T3

Input buffer 1

T6. The input level can be switched between CMOS compatible input level and SMBUS level by the I2C-BUS interface pin input

selection bit of the I2C control register (address 001516).

Fig. 13 Port block diagram (4)

17

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