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MC81F4204R Datasheet(PDF) 63 Page - Finechips

Part No. MC81F4204R
Description  ABOV SEMICONDUCTOR 8-BIT SINGLE-CHIP MICROCONTROLLERS
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Manufacturer  FINECHIPS [Finechips]
Direct Link  http://www.finechips.com
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MC81F4204R Datasheet(HTML) 63 Page - Finechips

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MC81F4204
October 19, 2009 Ver.1.35
63
10.1 R0 Port Registers
R0CONH
– R05~07
R0 PORT CONTROL HIGH REGISTER
00C6H
A reset clears the R0CONH register to
„00H‟, makes R07-R05 pins input mode. You can use
R0CONH register setting to select input or output mode (open-drain or push-pull) and enable
alternative functions.
When programming the port, please remember that any alternative peripheral I/O function that
defined by the R0CONH register must also be enabled in the associated peripheral module.
7
6
5
4
3
2
1
0
R0CONH
R07
R06
–
R05
Reset value:
0000_00-0b
R/W
R/W
R/W
R/W
R/W
R/W
–
R/W
R07
R07/AN5/EXT5/T2O
000: Schmitt trigger input mode (EXT5)
001: Output mode, open-drain
010: Alternative function (AN5)
011: Alternative function (T2O)
1xx: Output mode, push-pull
R06
R06/AN4/EXT4/SO/EC2
000: Schmitt trigger input mode
(EC2/EXT4)
001: Output mode, open-drain
010: Alternative function (AN4)
011: Alternative function (SO)
1xx: Output mode, push-pull
–
bit1
Not used for MC81F4204
R05
R05/AN3/EXT3/SI/T1O/PWM1O
1: Output mode, push-pull
0: depend on R0CONM.7
– .6
Note:
1. When R0CONH.0 is selected to
„1‟, R05 is push-pull output mode.
2. When R0CONH.0 is selected to
„0‟, R05 depends on R0CONM.7 - .6 bits.


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