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PSD833F2 Datasheet(PDF) 73 Page - STMicroelectronics

Part # PSD833F2
Description  Flash in-system programmable (ISP) peripherals
PDF  128 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PSD833F2 Datasheet(HTML) 73 Page - STMicroelectronics

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PSD8XXFX
I/O ports
Doc ID 7833 Rev 7
73/128
Table 23.
Port configuration registers (PCR)t
Register name
Port
MCU access
Control
A,B
WRITE/READ
Direction
A,B,C,D
WRITE/READ
Drive Select(1)
1.
See Table 27 for Drive register bit definition.
A,B,C,D
WRITE/READ
Table 24.
Port Pin Direction Control, Output Enable P.T. not defined
Direction register bit
Port Pin mode
0
Input
1
Output
Table 25.
Port Pin Direction Control, Output Enable P.T. defined
Direction register Bit
Output Enable P.T.
Port Pin mode
0
0
Input
0
1
Output
1
0
Output
1
1
Output
Table 26.
Port Direction assignment example
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
1
1
1
Table 27.
Drive register pin assignment
Drive
register
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Port A
Open
Drain
Open
Drain
Open
Drain
Open
Drain
Slew
Rate
Slew
Rate
Slew
Rate
Slew
Rate
Port B
Open
Drain
Open
Drain
Open
Drain
Open
Drain
Slew
Rate
Slew
Rate
Slew
Rate
Slew
Rate
Port C
Open
Drain
Open
Drain
Open
Drain
Open
Drain
Open
Drain
Open
Drain
Open
Drain
Open
Drain
Port D
NA(1)
1.
NA = Not Applicable.
NA(1)
NA(1)
NA(1)
NA(1)
Slew
Rate
Slew
Rate
Slew
Rate
Obsolete
Product(s)
- Obsolete
Product(s)



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