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M38261ECFS Folha de dados(PDF) 25 Page - Renesas Technology Corp

Nome de Peças M38261ECFS
Descrição Electrónicos  SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
PDF  91 Pages
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Fabricante Electrônico  RENESAS [Renesas Technology Corp]
Página de início  http://www.renesas.com
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M38261ECFS Folha de dados(HTML) 25 Page - Renesas Technology Corp

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Rev.1.00
Sep 06, 2006
page 25 of 88
REJ03B0181-0100
3826 Group (One Time PROM version)
The key input interrupt is controlled by the key input control regis-
ter and the port direction register. When enabling the key input
interrupt, set “1” to the key input control bit. A key input can be ac-
cepted from pins set as the input mode in ports P20–P27.
Fig. 21 Structure of key input control register
P20 key input control bit
P21 key input control bit
P22 key input control bit
P23 key input control bit
P24 key input control bit
P25 key input control bit
P26 key input control bit
P27 key input control bit
0 : Key input interrupt disabled
1 : Key input interrupt enabled
Key input control register
(KIC : address 001516)
b7
b0



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