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UPSD3422 Datasheet(PDF) 81 Page - STMicroelectronics

Part # UPSD3422
Description  Turbo Plus series Fast Turbo 8032 MCU with USB and programmable logic
PDF  300 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UPSD3422 Datasheet(HTML) 81 Page - STMicroelectronics

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Obsolete
Product(s)
- Obsolete
Product(s)
Obsolete
Product(s)
- Obsolete
Product(s)
UPSD3422, UPSD3433, UPSD3434, UPSD3454
I/O ports of mcu module
81/300
Figure 17.
MCU I/O cell block diagram for port 3
Figure 18.
MCU I/O cell block diagram for port 4
Table 35.
P1: I/O port 1 register (SFR 90h, reset value FFh)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
P1.7
P1.6
P1.5
P1.4
P1.3
P1.2
P1.1
P1.0
Table 36.
P1 register bit definition
Bit
Symbol
R/W
Function(1)
7
P1.7
R,W
Port pin 1.7
6
P1.6
R,W
Port pin 1.6
5
P1.5
R,W
Port pin 1.5
4
P1.4
R,W
Port pin 1.4
3
P1.3
R,W
Port pin 1.3
P3.X Pin
Digital_Pin_Data_In
Q
D
PRE
SFR
P3.X
Latch
8032 Data Bus Bit
GPIO P3.X SFR
Write Latch
MCU_Reset
P3.X SFR Read Latch
(for R-M-W instructions)
P3.X SFR Read Pin
Select_Alternate_Func
Disables High-Side Driver
IN 1
IN 0
Y
MUX
VCC
VCC
VCC
SEL
Enable_I
2
C
WEAK
PULL-UP, B
STONGER
PULL-UP, A
LOW
SIDE
HIGH
SIDE
DELAY,
1 MCU_CLK
DELAY,
1 MCU_CLK
Q
Digital_Alt_Func_Data_Out
AI09601
P4.X Pin
Digital_Pin_Data_In
Q
D
PRE
SFR
P4.X
Latch
8032 Data Bus Bit
GPIO P4.X SFR
Write Latch
MCU_Reset
P4.X SFR Read Latch
(for R-M-W instructions)
P4.X SFR Read Pin
Select_Alternate_Func
For PCA Alternate Function
IN 1
IN 0
Y
MUX
VCC
VCC
VCC
SEL
Enable_Push_Pull
WEAK
PULL-UP, B
STONGER
PULL-UP, A
LOW
SIDE
HIGH
SIDE
DELAY,
1 MCU_CLK
DELAY,
1 MCU_CLK
Q
Digital_Alt_Func_Data_Out
AI09602
Obsolete
Product(s)
- Obsolete
Product(s)



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