UPSD3422 datasheet(13/293 Pages) STMICROELECTRONICS

13 / 293 page

uPSD34xx

Pin descriptions

13/293

Table 2.

Pin definitions

Port Pin

Signal

Name

80-Pin

No.

52-Pin

No.(1)

In/Out

Function

Basic

Alternate 1

Alternate 2

MCUAD0

AD0

N/A

I/O

External Bus

Multiplexed

Address/Data bus

A0/D0

MCUAD1

AD1

N/A

I/O

Multiplexed

Address/Data bus

A1/D1

MCUAD2

AD2

N/A

I/O

Multiplexed

Address/Data bus

A2/D2

MCUAD3

AD3

N/A

I/O

Multiplexed

Address/Data bus

A3/D3

MCUAD4

AD4

N/A

I/O

Multiplexed

Address/Data bus

A4/D4

MCUAD5

AD5

N/A

I/O

Multiplexed

Address/Data bus

A5/D5

MCUAD6

AD6

N/A

I/O

Multiplexed

Address/Data bus

A6/D6

MCUAD7

AD7

N/A

I/O

Multiplexed

Address/Data bus

A7/D7

P1.0

ADC0

I/O

General I/O port pin

Timer 2 Count input

(T2)

ADC Channel 0

input (ADC0)

P1.1

T2X

ADC1

I/O

General I/O port pin

Timer 2 Trigger

input (T2X)

ADC Channel 1

input (ADC1)

P1.2

RxD1

ADC2

I/O

General I/O port pin

UART1 or IrDA

Receive (RxD1)

ADC Channel 2

input (ADC2)

P1.3

TXD1

ADC3

I/O

General I/O port pin

UART or IrDA

Transmit (TxD1)

ADC Channel 3

input (ADC3)

P1.4

SPICLK

ADC4

I/O

General I/O port pin

SPI Clock Out

(SPICLK)

ADC Channel 4

input (ADC4)

P1.5

SPIRxD

ADC5

I/O

General I/O port pin

SPI Receive

(SPIRxD)

ADC Channel 5

input (ADC5)

P1.6

SPITXD

ADC6

I/O

General I/O port pin

SPI Transmit

(SPITxD)

ADC Channel 6

input (ADC6)

P1.7

SPISEL

ADC7

I/O

General I/O port pin

SPI Slave Select

(SPISEL)

ADC Channel 7

input (ADC7)

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