H8SLASH3021 datasheet(193/712 Pages) RENESAS

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7. I/O Ports

Rev.2.00 Mar. 22, 2007 Page 169 of 684

REJ09B0352-0200

7.10.3

Pin Functions

The port A pins are also used for TPC output (TP

7 to TP0), ITU input/output (TIOCB2 to TIOCB0,

TIOCA

2 to TIOCA0) and input (TCLKD, TCLKC, TCLKB, TCLKA), and as address bus pins (A23

to A

20). Table 7.16 describes the selection of pin functions.

Table 7.16

Port A Pin Functions

Pin Functions and Selection Method

7/TP7/

TIOCB

2/A20

The mode setting, ITU channel 2 settings (bit PWM2 in TMDR and bits IOB2 to

IOB0 in TIOR2), bit NDER7 in NDERA, and bit PA7DDR in PADDR select the pin

function as follows

Mode

1, 5 and 7

3 and 6

ITU channel 2

settings

(1) in table below

(2) in table below

—

7DDR

—

NDER7

—

Pin function

TIOCB

2 output

input

output

TIOCB

2 input*

Note:

TIOCB

2 input when IOB2 = 1 and PWM2 = 0.

ITU channel 2

settings

(2)

(1)

(2)

IOB2

IOB1

—

IOB0

—

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