HD6433713 datasheet(145/324 Pages) RENESAS

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Table 7-24 Port 9 Pin Functions (cont)

Pin Functions and Selection Method

P91/SCK1

Functions are switched as follows by means of bit SCK1 in PMR2,* bits

SMR13 to SMR10 in serial mode register 1 (SMR1)*, and bit PCR91 in PCR9.

SCK1

SMR13 to 10

—

Not 1111

1111

PCR91

—

Pin function

P91 input pin P91 output pin SCK1 output pin SCK1 input pin

Note: * Before entering power-down mode, if this pin is set to SCK1 input by

bit SCK1 in PMR2 and bits SMR13 to SMR10 in SMR1, it should be

kept from floating by external connection, or else should be set to

some other use by changing the SCK1 bit or bits SMR13 to SMR10

prior to the state transition.

For the settings of bits SMR13 to SMR10 in SMR1, see 10.2.1, Serial Mode

P90/PWM

Functions are switched as follows by means of bit PWM in PMR2 and bit

PCR90 in PCR9.

PWM

PCR90

—

Pin function

P90 input pin P90 output pin

PWM output pin

7.8.4 Pin States

Table 7-25 shows the port 9 pin states in each operating mode.

Table 7-25 Port 9 Pin States

Pins

Reset

Sleep

Standby

Watch

Subactive

Active

P97/UD,

High

Normal

P96/SO2,

impedance or state

impedance

operation

P95/SI2/CS,

pulled up

retained

P94/SCK2,

P93/SO1,

P92/SI1,

P91/SCK1,

P90/PWM

134

HD6433713 Datasheet(PDF) 145 Page - Renesas Technology Corp

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