DS2196 datasheet(36/157 Pages) DALLAS

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DS2196

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Table 6-1: OUTPUT PIN TEST MODES

TEST 1

TEST 0 EFFECT ON OUTPUT PINS

operate normally

force all output pins into 3–state (including all I/O pins and

parallel port pins)

force all output pins low (including all I/O pins except parallel port

pins)

force all output pins high (including all I/O pins except parallel

port pins)

CCR1A: COMMON CONTROL REGISTER 1 FRAMER A (Address = 37 Hex)

(MSB)

(LSB)

TRAIM

ODF

RSAO

RDS2

RDS1

RDS0

PLB

FLB

SYMBOL

POSITION

NAME AND DESCRIPTION

TRAIM

CCR1A.7

Transmit RAI Mode. Only used in ESF framing mode.

0 = normal RAI

1 = RAI-CI

ODF

CCR1A.6

Output Data Format.

0 = bipolar data at TPOSOA and TNEGOA

1 = NRZ data at TPOSOA; TNEGOA = TSYNCA delayed by

10 TCLKAs

RSAO

CCR1A.5

Receive Signaling All 1’s.

0 = allow robbed signaling bits to appear at RSERA

1 = force all robbed signaling bits at RSERA to 1

RDS2

CCR1A.4

Receive Data Source Bit 2 See Table 6–2.

RDS1

CCR1A.3

Receive Data Source Bit 1 See Table 6–2.

RDS0

CCR1A.2

Receive Data Source Bit 0 See Table 6–2.

PLB

CCR1A.1

Payload Loopback.

0 = loopback disabled

1 = loopback enabled

FLB

CCR1A.0

Framer Loopback.

0 = loopback disabled

1 = loopback enabled

DS2196 Datasheet(PDF) 36 Page - Dallas Semiconductor

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