UPSD3422 datasheet(76/293 Pages) STMICROELECTRONICS

76 / 293 page

I/O ports of mcu module

uPSD34xx

76/293

Table 32.

P1SFS1: Port 1 Special Function Select 1 Register (SFR 8Fh, reset value

00h)

Table 33.

P1SFS0 and P1SFS1 Details

Table 34.

P4SFS0: Port 4 Special Function Select 0 Register (SFR 92h, reset value

00h)

Table 35.

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

P1SF17

P1SF16

P1SF15

P1SF14

P1SF13

P1SF12

P1SF11

P1SF10

Port 1 Pin

R/W

Default Port Function

Alternate 1 Port

Function

Alternate 2 Port

Function

P1SFS0[i] = 0

P1SFS1[i] = x

P1SFS0[i] = 1

P1SFS1[i] = 0

P1SFS0[i] = 1

P1SFS1[i] = 1

Port 1 Pin, i = 0.. 7

R,W

GPIO

Timer 2 Count Input, T2

ADC Chn 0 Input,

ADC0

R,W

GPIO

Timer 2 Trigger Input,

TX2

ADC Chn 1 Input,

ADC1

R,W

GPIO

UART1 Receive, RXD1

ADC Chn 2 Input,

ADC2

R,W

GPIO

UART1 Transmit, TXD1

ADC Chn 3 Input,

ADC3

R,W

GPIO

SPI Clock, SPICLK

ADC Chn 4 Input,

ADC4

R,W

GPIO

SPI Receive, SPIRXD

ADC Chn 5 Input,

ADC5

R,W

GPIO

SPI Transmit, SPITXD

ADC Chn 6 Input,

ADC6

R,W

GPIO

SPI Select, SPISEL_

ADC Chn 7 Input,

ADC7

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

P4SF07

P4SF06

P4SF05

P4SF04

P4SF03

P4SF02

P4SF01

P4SF00

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

P4SF17

P4SF16

P4SF15

P4SF14

P4SF13

P4SF12

P4SF11

P4SF10

UPSD3422 Datasheet(PDF) 76 Page - STMicroelectronics

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