T83C51SND1 데이터 시트보기 (PDF) - Atmel Corporation

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T83C51SND1

Single Chip Microcontroller with MP3 Decoder and Man Machine Interface

Atmel Corporation 

Rev. D – 15-Nov-01

T8xC51SND1

Table 7. UART Signal Description

Signal

Name

Type

Description

Alternate

Function

RXD

Receive Serial Data

I/O RXD sends and receives data in serial I/O mode 0 and receives data in

serial I/O modes 1, 2 and 3.

P3.0

TXD

Transmit Serial Data

O TXD outputs the shift clock in serial I/O mode 0 and transmits data in

serial I/O modes 1, 2 and 3.

P3.1

Table 8. SPI Controller Signal Description

Signal

Name

MISO

Type

Description

SPI Master Input Slave Output Data Line

I/O When in master mode, MISO receives data from the slave peripheral.

When in slave mode, MISO outputs data to the master controller.

Alternate

Function

P4.0

MOSI

SPI Master Output Slave Input Data Line

I/O When in master mode, MOSI outputs data to the slave peripheral.

When in slave mode, MOSI receives data from the master controller.

P4.1

SCK

SPI Clock Line

I/O When in master mode, SCK outputs clock to the slave peripheral. When

in slave mode, SCK receives clock from the master controller.

P4.2

SS#

I

SPI Slave Select Line

When in controlled slave mode, SS# enables the slave mode.

P4.3

Table 9. 2-wire Controller Signal Description

Signal

Name

Type

Description

2-wire Serial Clock

SCL

I/O

When 2-wire controller is in master mode, SCL outputs the serial clock

to the slave peripherals. When 2-wire controller is in slave mode, SCL

receives clock from the master controller.

SDA

I/O

2-wire Serial Data

SDA is the bidirectional 2-wire data line.

Alternate

Function

P1.6

P1.7

Table 10. A/D Converter Signal Description

Signal

Name

AIN1:0

Type

Description

I A/D Converter Analog Inputs

AREFP

AREFN

I Analog Positive Voltage Reference Input

I

Analog Negative Voltage Reference Input

This pin is internally connected to AVSS.

Alternate

Function

-

-

-

7

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