SH7101 datasheet(463/560 Pages) RENESAS

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Section 15 I/O Ports

Rev.1.00 Sep. 18, 2008 Page 429 of 522

REJ09B0069-0100

Section 15 I/O Ports

The SH7108 has five ports: A, B, E, F, and G. Port A is a 16-bit port, port B is a 4-bit port, and

port E is a 22-bit port, all supporting both input and output. Port F is an 8-bit port and port G is a

4-bit port, both for input-only.

The SH7109 has five ports: A, B, D, E, and F. Port A is a 16-bit port, port B is a 6-bit port, port D

is a 9-bit port, and port E is a 22-bit port, all supporting both input and output. Port F is a 16-bit

input-only port.

All the port pins are multiplexed as general input/output pins and special function pins. The

functions of the multiplex pins are selected by means of the pin function controller (PFC).

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

15.1

Port A

Port A in the SH7108 is an input/output port with the 16 pins shown in figure 15.1.

PA15 (I/O) /

(input)

PA14 (I/O) /

(input)

PA13 (I/O) /

(input)

PA12 (I/O)

PA11 (I/O) /

(input) / SCK3 (I/O)

PA10 (I/O) / SCK2 (I/O)

PA9 (I/O) / TCLKD (input)/ TxD3 (output)

PA8 (I/O) / TCLKC (input) / RxD3 (input)

PA7 (I/O) / TCLKB (input) / TxD2 (output)

PA6 (I/O) / TCLKA (input) / RxD2 (input)

PA5 (I/O) /

(input) / SCK3 (I/O)

PA4 (I/O) / TXD3 (output)

PA3 (I/O) /

(input) / RxD3 (input)

PA2 (I/O) /

(input) / PCIO (I/O) / SCK2 (I/O)

PA1 (I/O) /

(input) / TxD2 (output)

PA0 (I/O) /

(input) / RxD2 (input)

Port A

Figure 15.1 Port A (SH7108)

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