H8SSLASH2218 datasheet(266/750 Pages) RENESAS

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Section 8 I/O Ports

Rev.6.00 Jun. 03, 2008 Page 218 of 698

REJ09B0074-0600

8.1.4

Pin Functions

Pin Functions of H8S/2218 Group

Port 1 pins also function as address bus (A23 to A20) output pins, TPU I/O pins, and external

interrupt input (

IRQ0 and IRQ1) pins. The correspondence between the register specification and

the pin functions is shown below.

Table 8.3

P17 Pin Function

TPU Channel 2 Setting*

Output Setting

Input Setting or Initial Value

P17DDR

⎯

P17 input pin

P17 output pin

TIOCB2 output pin

TIOCB2 input pin

Pin Function

TCLKD input pin

Note: * For details on the TPU channel setting, refer to section 9, 16-Bit Timer Pulse Unit (TPU).

Table 8.4

P16 Pin Function

TPU Channel 2 Setting*

Output Setting

Input Setting or Initial Value

P16DDR

⎯

P16 input pin

P16 output pin

TIOCA2 output pin

TIOCA2 input pin

Pin Function

IRQ1 input pin*2

Notes: 1. For details on the TPU channel setting, refer to section 9, 16-Bit Timer Pulse Unit

(TPU).

2. When this pin is used as an external interrupt pin, this pin must not be used for another

function.

Table 8.5

P15 Pin Function

TPU Channel 1 Setting*

Output Setting

Input Setting or Initial Value

P15DDR

⎯

P15 input pin

P15 output pin

TIOCB1 output pin

TIOCB1 input pin

Pin Function

TCLKC input pin

Note: * For details on the TPU channel setting, refer to section 9, 16-Bit Timer Pulse Unit (TPU).

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