ST16C580 View Datasheet(PDF) - Exar Corporation

Part Name

Description

MFG CO.

ST16C580

UART WITH 16-BYTE FIFO’s AND INFRARED (IrDA) ENCODER/DECODER

Exar Corporation 

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ST16C580

A2 A1 A0

Register

[Default]

Note *5

BIT-7

BIT-6

Enhanced Register Set: Note *4

BIT-5

BIT-4

BIT-3

BIT-2

BIT-1

BIT-0

010

EFR [00]

100

101

110

111

Xon-1 [00]

Xon-2 [00]

Xoff-1 [00]

Xoff-2 [00]

Auto

CTS

bit-7

bit-15

bit-7

bit-15

Auto

RTS

bit-6

bit-14

bit-6

bit-14

Special

Char.

select

Enable

IER

Bits 4-7,

ISR, FCR

Bits 4-5,

MCR

Bits 5-7

Cont-3

Tx,Rx

Control

bit-5

bit-13

bit-5

bit-13

bit-4

bit-12

bit-4

bit-12

bit-3

bit-11

bit-3

bit-11

Cont-2

Tx,Rx

Control

bit-2

bit-10

bit-2

bit-10

Cont-1

Tx,Rx

Control

bit-1

bit-9

bit-1

bit-9

Cont-0

Tx,Rx

Control

bit-0

bit-8

bit-0

bit-8

Note *3: The Special register set is accessible only when LCR bit-7 is set to a logic 1.

Note *4: Enhanced Feature Register, Xon 1,2 and Xoff 1,2 are accessible only when LCR is set to “BF“ Hex

Note *5: The value represents the register’s initialized HEX value. An “X” signifies a 4-bit un-initialize nibble.

Rev. 1.20

17

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