SH7261 datasheet(1075/1348 Pages) RENESAS

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Section 24 I/O Ports

Rev. 2.00 Sep. 07, 2007 Page 1043 of 1312

REJ09B0320-0200

Section 24 I/O Ports

This LSI has six ports: A to F.

All port pins are multiplexed with other pin functions. The functions of the multiplexed pins are

selected using the pin function controller (PFC).

Each port is provided with a data register for storing the pin data and a port read register for

reading out the pin values.

24.1

Port A

Port A is an I/O port with 32 pins shown in figure 24.1.

Port A

PA31 (I/O) / CRx1 (Input) / DTEND0 (Output)

PA30 (I/O) / CTx1 (Output) / DACT0 (Output)

PA29 (I/O) / CRx0 (Input) / DACK0 (Output)

PA28 (I/O) / CTx0 (Output) / DREQ0 (Input)

PA27 (I/O) / A27 (Output) / PINT3 (Input) / DTEND3 (Output)

PA26 (I/O) / A26 (Output) / PINT2 (Input) / DACT3 (Output)

PA25 (I/O) / A25 (Output) / PINT1 (Input) / DACK3 (Output)

PA24 (I/O) / A24 (Output) / PINT0 (Input) / DREQ3 (Input)

PA23 (I/O) / A23 (Output)

PA22 (I/O) / A22 (Output)

PA21 (I/O) / A21 (Output)

PA20 (I/O) / A20 (Output)

PA19 (I/O) / A19 (Output)

PA18 (I/O) / A18 (Output)

PA17 (I/O) / A17 (Output)

PA16 (I/O) / A16 (Output)

PA15 (I/O) / A15 (Output)

PA14 (I/O) / A14 (Output)

PA13 (I/O) / A13 (Output)

PA12 (I/O) / A12 (Output)

PA11 (I/O) / A11 (Output)

PA10 (I/O) / A10 (Output)

PA9 (I/O) / A9 (Output)

PA8 (I/O) / A8 (Output)

PA7 (I/O) / A7 (Output)

PA6 (I/O) / A6 (Output)

PA5 (I/O) / A5 (Output)

PA4 (I/O) / A4 (Output)

PA3 (I/O) / A3 (Output)

PA2 (I/O) / A2 (Output)

PA1 (I/O) / A1 (Output)

PA0 (I/O) / A0 (Output)

Figure 24.1 Port A

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