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R8C18 Datasheet(PDF) 46 Page - Renesas Technology Corp

Part # R8C18
Description  RENESAS 16-BIT SINGLE-CHIP MCU R8C FAMILY / R8C/1x SERIES
PDF  257 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

R8C18 Datasheet(HTML) 46 Page - Renesas Technology Corp

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R8C/18 Group, R8C/19 Group
6. Programmable I/O Ports
Rev.1.30
Apr 14, 2006
Page 31 of 233
REJ09B0222-0130
Figure 6.3
Configuration of Programmable I/O Ports (3)
P4_5
Input to individual peripheral function
Port latch
Direction
register
Data bus
Pull-up selection
Digital
filter
P4_6/XIN
Data bus
Clocked inverter(1)
P4_7/XOUT
Data bus
(Note 2)
(Note 3)
NOTES:
1. When CM05 = 1, CM10 = 1, or CM13 = 0, the clocked inverter is cut off.
2. When CM10 = 1 or CM13 = 0, the feedback resistor is disconnected.
3. When CM05 = CM13 = 1 or CM10 = CM13 = 1, this pin is pulled up.
4.
P4_2
Data bus
Vref of comparator
symbolizes a parasitic diode.
Ensure the input voltage to each port does not exceed VCC.
(Note 4)
(Note 4)
(Note 4)
(Note 4)



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