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HD6433636SW Folha de dados(PDF) 151 Page - Renesas Technology Corp

Nome de Peças HD6433636SW
Descrição Electrónicos  8-Bit Microcomputer
PDF  418 Pages
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Fabricante Electrônico  RENESAS [Renesas Technology Corp]
Página de início  http://www.renesas.com
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HD6433636SW Folha de dados(HTML) 151 Page - Renesas Technology Corp

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8.3.4
Pin States
Table 8.7 shows the port 2 pin states in each operating mode.
Table 8.7
Port 2 Pin States
Pins
Reset
Sleep
Subsleep
Standby
Watch
Subactive Active
P2
7/ IRQ0
High-
impedance
High-
impedance
High-
impedance
High-
impedance
High-
impedance
High-
impedance
High-
impedance
P2
6/TXD
P2
5/RXD
P2
4/SCK3
P2
3/SO 1
P2
2/SI1
P2
1/SCK1
P2
0/ IRQ4/
ADTRG
High-
impedance
Retains
previous
state
Retains
previous
state
High-
impedance*
Retains
previous
state
Functional Functional
Note: * High level output if the MOS pull-up is on.
8.3.5
MOS Input Pull-Up
Port 2 has a built-in MOS input pull-up function that can be controlled by software. When a PCR2
bit is cleared to 0, setting the corresponding PUCR2 bit to 1 turns on the MOS pull-up for that pin.
The MOS input pull-up function is in the off state after a reset.
PCR2
n
01
PUCR2
n
01
*
MOS input pull-up
Off
On
Off
Note:
* Don’t care
(n = 6 to 0)
Note:
As P2
7 is an input-only pin, the MOS pull-up is turned off regardless of whether PUCR27
is set to 1 or cleared to 0.



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