H8SLASH3021 datasheet(190/712 Pages) RENESAS

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7. I/O Ports

Rev.2.00 Mar. 22, 2007 Page 166 of 684

REJ09B0352-0200

7.10

Port A

7.10.1

Overview

Port A is an 8-bit input/output port that is also used for output (TP

7 to TP0) from the programmable

timing pattern controller (TPC), input and output (TIOCB

2, TIOCA2, TIOCB1, TIOCA1, TIOCB0,

TIOCA

0, TCLKD, TCLKC, TCLKB, TCLKA) by the 16-bit integrated timer unit (ITU), and

address output (A

23 to A20).

Figure 7.22 shows the pin configuration of port A.

Pins in port A can drive one TTL load and a 30-pF capacitive load. They can also drive a

Darlington transistor pair. Port A has Schmitt-trigger inputs.

Port A

PA /TP /TIOCB /A

PA /TP /TIOCA /A

PA /TP /TIOCB /A

PA /TP /TIOCA /A

PA /TP /TIOCB /TCLKD

PA /TP /TIOCA /TCLKC

PA /TP /TCLKB

PA /TP /TCLKA

(input/output)/TP (output)/TIOCB (input/output)

(input/output)/TP (output)/TIOCA (input/output)

(input/output)/TP (output)/TIOCB (input/output)

(input/output)/TP (output)/TIOCA (input/output)

(input/output)/TP (output)/TIOCB (input/output)/TCLKD (input)

(input/output)/TP (output)/TIOCA (input/output)/TCLKC (input)

(input/output)/TP (output)/TCLKB (input)

(input/output)/TP (output)/TCLKA (input)

Port A pins

Modes 1, 5 and 7

(output)

(input/output)/TP (output)/TIOCA (input/output) /A

(output)

(input/output)/TP (output)/TIOCB (input/output) /A

(output)

(input/output)/TP (output)/TIOCA (input/output) /A

(output)

(input/output)/TP (output)/TIOCB (input/output)/TCLKD (input)

(input/output)/TP (output)/TIOCA (input/output)/TCLKC (input)

(input/output)/TP (output)/TCLKB (input)

(input/output)/TP (output)/TCLKA (input)

Modes 3 and 6

Figure 7.22 Port A Pin Configuration

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