H8SLASH3003 datasheet(288/715 Pages) RENESAS

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9.9.3 Pin Functions

The port B pins are also used for TPC output (TP15 to TP8), ITU input/output (TIOCB4, TIOCB3,

TIOCA4, TIOCA3) and output (TOCXB4, TOCXA4), DMAC input (DREQ1, DREQ0), and

ADTRG input. Table 9-16 describes the selection of pin functions.

Table 9-16 Port B Pin Functions

Pin Functions and Selection Method

PB7/TP15/DREQ1/ DMAC channel 1 settings (bits DTS2/1/0A and DTS2/1/0B in DTCR1A and

ADTRG

DTCR1B), bit TRGE in ADCR, bit NDER15 in NDERB, and bit PB7DDR in

PBDDR select the pin function as follows

PB7DDR

NDER15

—

Pin function

PB7 input

PB7 output

TP15 output

DREQ1 input*1

ADTRG input*2

Notes: 1. DREQ1 input under DMAC channel 1 settings 1 in the table below.

ADTRG input when TRGE = 1.

DMAC channel

1 settings

121221

DTS2A, DTS1A

Not both 1

Both 1

DTS0A

—

00111

DTS2B

01101011

DTS1B

—

270

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