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H8/3021 Datasheet(PDF) 185 Page - Renesas Technology Corp

Part # H8/3021
Description  16-Bit Single-Chip Microcomputer
PDF  712 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8/3021 Datasheet(HTML) 185 Page - Renesas Technology Corp

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7. I/O Ports
Rev.2.00 Mar. 22, 2007 Page 161 of 684
REJ09B0352-0200
7.8.3
Pin Functions
The port 8 pins are also used for
IRQ
1 and IRQ0. Table 7.12 describes the selection of pin
functions.
Table 7.12
Port 8 Pin Functions
Pin
Pin Functions and Selection Method
P8
1/IRQ1
Bit P8
1DDR selects the pin function as follows
P8
1DDR
0
1
Modes 1, 3, 5, and 6
Mode 7
Pin function
P8
1 input
Illegal setting
P8
1 output
IRQ
1 input
P8
0/IRQ0
Bit P8
0DDR selects the pin function as follows
P8
0DDR
0
1
Pin function
P8
0 input
P8
0 output
IRQ
0 input



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