Datasheet

ManualsBrandsRENESAS ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller LQFP 48 8-Bit 10 MHz I/O number 30

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CHAPTER 4 PORT FUNCTIONS

User’s Manual U18698EJ1V0UD

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4.5 Settings of PFALL, PF2, PF1, ISC, Port Mode Register, and Output Latch When Using Alternate

Function

To use the alternate function of a port pin, set the port mode register and output latch as shown in Table 4-5.

Table 4-5. Settings of PFALL, PF2, PF1, ISC, Port Mode Register, and Output Latch When Using

Alternate Function (1/2)

Alternate Function Pin Name

Function

Name

I/O

PFALL,

PF2

Note 4

PF1 ISC PM×× P××

KR3 Input

−

RxD0 Input

−

P12

<RxD6> Input

−

ISC4 = 0,

ISC5 = 1

Notes 5, 7

KR4 Input

−

PF13 = 0 1

TxD0 Output

−

PF13 = 1 0

P13

Note 9

<TxD6> Output

−

PF13 = 1 ISC4 = 0,

ISC5 = 1

SEG21 to

SEG16

Output 1

× ×

P20 to

P25

Note 2

ANI0 to

ANI5

Note 1

Input 0 1

TOH1 Output

−

0 0 P31

INTP3 Input

−

TOH0 Output

−

0 0 P32

MCGO Output

−

0 0

TI000 Input

−

ISC1 = 0 1

RTCDIV Output

−

0 0

RTCCL Output

−

0 0

BUZ Output

−

0 0

P33

INTP2 Input

−

TI52 Input

−

Note 6 1

TI010 Input

−

TO00 Output

−

0 0

RTC1HZ Output

−

0 0

P34

INTP1 Input

−

KR0 Input

−

P40

LC3

Note 8

Input

−

× ×

P100, P101 SEG4, SEG5 Output 1

SEG6 Output 1 ISC3 = 0

× ×

P112

TxD6 Output 0 ISC3 = 1,

ISC4 = ISC5 =

0 1

(Note and Remark are listed on the page after next.)