HD6433713 datasheet(144/324 Pages) RENESAS

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Table 7-24 Port 9 Pin Functions (cont)

Pin Functions and Selection Method

P94/SCK2

Functions are switched as follows by means of bit SCK2* in PMR2, bits PS1

and PS0* in serial control register 2 (SCR2), and bit PCR94 in PCR9.

SCK2

PS1, 0

—

Not 11

PCR94

—

Pin function

P94 input pin P94 output pin SCK2 output pin SCK2 input pin

Note: * Before entering power-down mode, if this pin is set to SCK2 input by

bit SCK2 in PMR2 and bits PS1 and PS0 in SCR2, it should be kept

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

other use by changing bits SCK2 and bits PS1 and PS0 prior to the

state transition.

For the settings of bits PS1 and PS0 in SCR2, see 11.2.3, Serial Control

P93/SO1*

Functions are switched as follows by means of bit SO1 in PMR2 and bit PCR93

in PCR9.

SO1

PCR93

—

Pin function

P93 input pin P93 output pin

SO1 output pin

Note: * The PMOS buffer transistor of pin P93/SO1 can be enabled or

disabled by the SO1PMOS bit in PMR3. For details see 10.2.6, Port

Mode Register 3 (PMR3).

P92/SI1

Functions are switched as follows by means of bit SI1* in PMR2 and bit PCR92

in PCR9.

SI1

PCR92

—

Pin function

P92 input pin P92 output pin

SI1 input pin

Note: * Before entering power-down mode, if this pin is set to SI1 input by bit

SI1 in PMR2, it should be kept from floating by external connection or

should be set to general I/O use by clearing bit SI1 to 0 prior to the

state transition.

133

HD6433713 Datasheet(PDF) 144 Page - Renesas Technology Corp

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