DS2196 datasheet(10/157 Pages) DALLAS

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DS2196

10 of 157

2. PIN DESCRIPTION

Table 2-1. Pin Description Sorted by Pin Number

SYMBOL

TYPE

FUNCTION

PCLK

Protect Clock Input.

PNRZ

Protect NRZ Data Input.

WCLK

Working Clock Input.

WNRZ

Working NRZ Data Input.

JTMS

IEEE 1149.1 Test Mode Select.

JTCLK

IEEE 1149.1 Test Clock Signal.

JTRST*

IEEE 1149.1 Test Reset.

JTDI

IEEE 1149.1 Test Data Input.

JTDO

IEEE 1149.1 Test Data Output.

RCL

Receive LIU Carrier Loss.

LNRZ

LIU NRZ & Positive Data Output.

LCLK

LIU Clock Output.

LFSYNC

LIU Frame Sync Pulse & Negative Data Output.

RPOSLO

Receive Positive & NRZ Data Output from the LIU.

RNEGLO

Receive Negative & NRZ Data Output from the LIU.

RCLKLO

Receive Clock Output from the LIU.

BTS

Bus Type Select. 0 = Intel / 1 = Motorola.

RTIP

Receive Analog Tip Input.

RRING

Receive Analog Ring Input.

RVDD

–

Receive Analog Positive Supply. 3.3V (±5%).

RVSS

–

Receive Analog Signal Ground.

INT*

Interrupt. Open Drain. Active Low Signal.

RVSS

–

Receive Analog Signal Ground.

MCLK

Master Clock Input. 1.544 MHz (±50 ppm).

UOP3

User Defined Output Port Bit 3.

UOP2

User Defined Output Port Bit 2.

UOP1

User Defined Output Port Bit 1.

UOP0

User Defined Output Port Bit 0.

TTIP

Transmit Analog Tip Output.

TVSS

–

Transmit Analog Signal Ground.

TVDD

–

Transmit Analog Positive Supply. 3.3V (±5%).

TRING

Transmit Analog Ring Output.

TPOSLI

Transmit Positive & NRZ Data for the LIU.

TNEGLI

Transmit Negative & NRZ Data for the LIU.

TCLKLI

Transmit Clock Input for the LIU.

TCHBLKB/

TLINKB

I/O

Transmit Channel Blocking Clock Output from Formatter B /

Transmit FDL Link Data Input for Formatter B.

TCHCLKB/

TLCLKB

Transmit DS0 Channel Clock Output from Formatter B /

Transmit FDL Link Clock Output from Formatter B.

TSYNCB

I/O

Transmit Frame & Multiframe Pulse for/from Formatter B.

TCLKB

Transmit Clock Input for Formatter B.

TSERB

Transmit Serial Data Input for Formatter B.

TPOSOB/

TNRZB

Transmit Positive Data Output from Formatter B /

Transmit NRZ Data Output from Formatter B.

TNEGOB /

TFSYNCB

Transmit Negative Data Output from Formatter B /

Transmit Frame Sync Pulse Output from Formatter B.

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