HD6432351 datasheet(396/1025 Pages) RENESAS

396 / 1025 page

Section 9 I/O Ports

Rev. 3.00 Sep 15, 2006 page 362 of 988

REJ09B0330-0300

9.7

Port 6

9.7.1

Overview

Port 6 is an 8-bit I/O port. Port 6 pins also function as interrupt input pins (

IRQ0 to IRQ3), DMAC

I/O pins (

DREQ0, TEND0, DREQ1, and TEND1), and bus control output pins (CS4 to CS7). The

functions of pins P65 to P62 are the same in all operating modes, while the functions of pins P67,

P66, P61, and P60 change according to the operating mode. Pins P67 to P64 are schmitt-triggered

inputs. Figure 9.6 shows the port 6 pin configuration.

P67/IRQ3/CS7

P66/IRQ2/CS6

P65/IRQ1

P64/IRQ0

P63/TEND1

P62/DREQ1

P61/TEND0/CS5

P60/DREQ0/CS4

P67 (I/O)/IRQ3 (input)

P66 (I/O)/IRQ2 (input)

P65 (I/O)/IRQ1 (input)

P64 (I/O)/IRQ0 (input)

P63 (I/O)/TEND1 (output)

P62 (I/O)/DREQ1 (input)

P61 (I/O)/TEND0 (output)

P60 (I/O)/DREQ0 (input)

Port 6 pins

Pin functions in modes 1 to 3 and 7*

P67 (input)/IRQ3 (input)/CS7 (output)

P66 (input)/IRQ2 (input)/CS6 (output)

P65 (I/O)/IRQ1 (input)

P64 (I/O)/IRQ0 (input)

P63 (I/O)/TEND1 (output)

P62 (I/O)/DREQ1 (input)

P61 (input)/TEND0 (output)/CS5 (output)

P60 (input)/DREQ0 (input)/CS4 (output)

Pin functions in modes 4 to 6*

Port 6

Note: * Modes 2, 3, 6, and 7 only apply to the H8S/2351.

Figure 9.6 Port 6 Pin Functions

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