SH7101 datasheet(468/560 Pages) RENESAS

468 / 560 page

Section 15 I/O Ports

Rev.1.00 Sep. 18, 2008 Page 434 of 522

REJ09B0069-0100

Table 15.2

Port B Data Register (PBDR) Read/Write Operations

• Bits 5 to 0

PBIOR

Pin Function

Read

Write

General input

Pin state

Can write to PBDR, but it has no effect on pin state

Other than

general input

Pin state

Can write to PBDR, but it has no effect on pin state

General output

PBDR value

Value written is output from pin

Other than

general output

PBDR value

Can write to PBDR, but it has no effect on pin state

15.3

Port D

Port D that can only be used in the SH7109 is an input/output port with the nine pins shown in

figure 15.5.

PD8 (I/O)

PD7 (I/O) / D7 (I/O)

PD6 (I/O) / D6 (I/O)

PD5 (I/O) / D5 (I/O)

PD4 (I/O) / D4 (I/O)

PD3 (I/O) / D3 (I/O)

PD2 (I/O) / D2 (I/O) / SCK2 (I/O)

PD1 (I/O) / D1 (I/O) / TxD2 (output)

PD0 (I/O) / D0 (I/O) / RxD2 (input)

Port D

Figure 15.5 Port D (SH7109)

15.3.1

Port D has the following register. For details on register addresses and register states during each

processing, refer to section 19, List of Registers.

• Port D data register L (PDDRL)

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