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UPSD3422 Datasheet(PDF) 71 Page - STMicroelectronics

Part # UPSD3422
Description  Turbo Plus Series Fast Turbo 8032 MCU with USB and Programmable Logic
PDF  293 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UPSD3422 Datasheet(HTML) 71 Page - STMicroelectronics

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uPSD34xx
I/O ports of mcu module
71/293
CPL, INC, DEC, DJNZ, MOV, CLR, and SETB. All other types of reads to port SFRs will
read the actual pin logic level and not the port latch. This is consistent with 8051
architecture.
Figure 16.
MCU module port pin function routing
Figure 17.
MCU I/O cell block diagram for port 1
8
P3
P1
P4
M
C
U
A
D
GPIO (8)
UART0 (2)
TIMER0/1 (4)
I
2
C (2)
GPIO (8)
GPIO (8)
TIMER2 (2)
UART1 (2)
SPI (4)
ADC (8)
PCA (8)
8032 MCU
CORE
Low Addr & Data[7:0]
8
Hi Address [15:8]
(Available on PSD
Module Pins)
MCU Module
8
On 80-pin
Devices
Only
Ports
C
N
T
L
RD, WR, PSEN, ALE
4
SFR
8
8
SFR
SFR
SFR
SFR
SFR
AI09199b
P1.X Pin
Analog_Alt_Func_En
Analog_Pin_In
Q
D
PRE
SFR
P1.X
Latch
8032 Data Bus Bit
GPIO P1.X SFR
Write Latch
MCU_Reset
P1.X SFR Read Latch
(for R-M-W instructions)
P1.X SFR Read Pin
Select_Alternate_Func
Digital_Pin_Data_In
IN 1
IN 0
Y
MUX
VCC
VCC
VCC
SEL
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
AI09600



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