UPSD3422_06 Datasheet, PDF (14/293 Pages) STMicroelectronics – Turbo Plus Series Fast Turbo 8032 MCU with USB and Programmable Logic

Pin descriptions
uPSD34xx
Table 2. Pin definitions
Port Pin
Signal
Name
80-Pin
No.
52-Pin
No.⁽¹⁾
In/Out
Basic
Function
Alternate 1
Alternate 2
P3.0
RxD0
75
23
I/O
General I/O port pin
UART0 Receive
(RxD0)
P3.1
TXD0
77
24
I/O
General I/O port pin
UART0 Transmit
(TxD0)
P3.2
EXINT0
TGO
79
Interrupt 0 input
25 I/O General I/O port pin (EXTINT0)/Timer 0
gate control (TG0)
P3.3
INT1
Interrupt 1 input
2
26 I/O General I/O port pin (EXTINT1)/Timer 1
gate control (TG1)
P3.4
C0
40 27 I/O General I/O port pin Counter 0 input (C0)
P3.5
P3.6
P3.7
C1
SDA
SCL
42 28 I/O General I/O port pin Counter 1 input (C1)
44
29
I/O
General I/O port pin
I²C Bus serial data
(I²CSDA)
46
30
I/O
General I/O port pin
I²C Bus clock
(I²CSCL)
P4.0
T2
TCM0
33
22
I/O
General I/O port pin
Program Counter
Array0 PCA0-TCM0
Timer 2 Count input
(T2)
P4.1
T2X
TCM1
31
21
I/O General I/O port pin PCA0-TCM1
Timer 2 Trigger
input (T2X)
P4.2
RXD1
TCM2
30
20
I/O General I/O port pin PCA0-TCM2
UART1 or IrDA
Receive (RxD1)
P4.3
TXD1
PCACLK0
27
18
I/O General I/O port pin PCACLK0
UART1 or IrDA
Transmit (TxD1)
P4.4
SPICLK
TCM3
25
17
I/O
General I/O port pin
Program Counter
Array1 PCA1-TCM3
SPI Clock Out
(SPICLK)
P4.5
SPIRXD
TCM4
23
16
I/O General I/O port pin PCA1-TCM4
SPI Receive
(SPIRxD)
P4.6
SPITXD 19
15 I/O General I/O port pin PCA1-TCM5
SPI Transmit
(SPITxD)
SPISEL
P4.7 _PCACLK1 18
14
I/O General I/O port pin PCACLK1
SPI Slave Select
(SPISEL)
AV_REF
70 N/A
Reference Voltage
input for ADC.
I Connect AV_REF to
VCC if the ADC is
not used.
RD
65 N/A
O
READ Signal,
external bus
WR
62 N/A
O
WRITE Signal,
external bus
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