UPSD33XX Datasheet, PDF (61/231 Pages) STMicroelectronics – Fast 8032 MCU with Programmable Logic

uPSD33xx
Table 32. P4SFS0: Port 4 Special Function Select 0 Register (SFR 92h, reset value 00h)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
P4SF07
P4SF06
P4SF05
P4SF04
P4SF03
P4SF02
P4SF01
P4SF00
Details
Table 33. P4SFS1: Port 4 Special Function Select 1 Register (SFR 93h, reset value 00h)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
P4SF17
P4SF16
P4SF15
P4SF14
P4SF13
P4SF12
P4SF11
P4SF10
Table 34. P4SFS0 and P4SFS1 Details
Default Port Function
Port 4 Pin
R/W
P4SFS0[i] = 0
P4SFS1[i] = x
Port 4 Pin, i = 0.. 7
0
R,W
GPIO
1
R,W
GPIO
2
R,W
GPIO
3
R,W
GPIO
4
R,W
GPIO
5
R,W
GPIO
6
R,W
GPIO
7
R,W
GPIO
Alternate 1 Port Function Alternate 2 Port Function
P4SFS0[i] = 1
P4SFS1[i] = 0
P4SFS0[i] = 1
P4SFS1[i] = 1
Port 4 Pin, i = 0.. 7
Port 4 Pin, i = 0.. 7
PCA0 Module 0, TCM0
Timer 2 Count Input, T2
PCA0 Module 1, TCM1 Timer 2 Trigger Input, TX2
PCA0 Module 2, TCM2
UART1 Receive, RXD1
PCA0 Ext Clock, PCACLK0 UART1 Transmit, TXD1
PCA1 Module 3, TCM3
SPI Clock, SPICLK
PCA1 Module 4, TCM4
SPI Receive, SPIRXD
PCA1 Module 5, TCM5
SPI Transmit, SPITXD
PCA1 Ext Clock, PCACLK1 SPI Select, SPISEL_
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