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H8S2245 Datasheet(PDF) 288 Page - Renesas Technology Corp

Part # H8S2245
Description  Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
PDF  818 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8S2245 Datasheet(HTML) 288 Page - Renesas Technology Corp

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Section 8 I/O Ports
Rev.3.00 Mar. 26, 2007 Page 246 of 772
REJ09B0355-0300
8.7.4
MOS Input Pull-Up Function
Port A has a built-in MOS input pull-up function that can be controlled by software. This MOS
input pull-up function can be used in modes 1, 2, 3, 6, and 7, and cannot be used in modes 4 and 5.
MOS input pull-up can be specified as on or off on an individual bit basis.
When a PADDR bit is cleared to 0, setting the corresponding PAPCR bit to 1 turns on the MOS
input pull-up for that pin.
The MOS input pull-up function is in the off state after a power-on reset, and in hardware standby
mode. The prior state is retained after a manual reset, and in software standby mode.
Note:
Modes 2, 3, 6, and 7 cannot be used in the H8S/2240.
Table 8.12 summarizes the MOS input pull-up states.
Table 8.12
MOS Input Pull-Up States (Port A)
Modes
Power-On
Reset
Hardware
Standby Mode
Manual
Reset
Software
Standby Mode
In Other
Operations
1 to 3, 6, 7
PA
3 to PA0
OFF
OFF
ON/OFF ON/OFF
ON/OFF
4, 5
PA
3 to PA0
OFF
OFF
OFF
Legend:
OFF:
MOS input pull-up is always off.
ON/OFF: On when PADDR = 0 and PAPCR = 1; otherwise off.



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