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M32C/8B bảng dữ liệu(PDF) 312 Page - Renesas Technology Corp

tên linh kiện M32C/8B
Giải thích chi tiết về linh kiện  RENESAS MCU M16C FAMILY / M32C/80 SERIES
PDF  406 Pages
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nhà sản xuất  RENESAS [Renesas Technology Corp]
Trang chủ  http://www.renesas.com
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M32C/8B bảng dữ liệu(HTML) 312 Page - Renesas Technology Corp

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Under development
M32C/8B Group
22. Programmable I/O Ports
Preliminary specification
Specifications in this manual are tentative and subject to change.
REJ09B0450-0050 Rev.0.50 Oct 31, 2008
Page 295 of 385
Figure 22.16
PCR Register
Reserved bits
b7
0
0
b6 b5 b4
b1
b2
b3
Symbol
PCR
Address
03FFh
After Reset
XXXX X000b
b0
Function
Bit Symbol
Bit Name
RW
−
(b7-b3)
RW
−
Port Control Register
0: CMOS output
1: N-channel open drain output(2)
Port P1 control bit(1)
PCR0
RW
Unimplemented.
Write 0. Read as undefined value.
−
(b2-b1)
Set to 0
NOTES:
1. In memory expansion mode and microprocessor mode, set the PCR0 bit to 0 since port P1 is used as data bus.
When using port P1 as an I/O port, CMOS or N-channel open drain output can be selected.
2. This function is designed to use port P1 as pseudo open drain by always turning off P channel of the CMOS port . Therefore, the
absolute maximum rating of the input voltage is from -0.3 V to VCC2 + 0.3 V.



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