DS2196 datasheet(45/157 Pages) DALLAS

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DS2196

45 of 157

CCR4B: COMMON CONTROL REGISTER 4 FRAMER B (Address = B1 Hex)

(MSB)

(LSB)

RCLKIPOL

TCLKOPOL

BERTMEN

–

FAFBMC

RTDLPM

TIRFS

SYMBOL

POSITION

NAME AND DESCRIPTION

RCLKIPOL

CCR4B.7

RCLKIB Polarity Select.

0 = no inversion.

1 = invert.

TCLKOPOL

CCR4B.6

TCLKOB Polarity Select.

0 = no inversion.

1 = invert.

BERTMEN

CCR4B.5

Transmit BERT Mux Enable.

0 = BERT mux disabled.

1 = BERT mux enabled.

–

CCR4B.4

Not Assigned. Must be set to 0 when written.

–

CCR4B.3

Not Assigned. Must be set to 0 when written.

FAFBMC

CCR4B.2

Framer/Formatter A to Framer/Formatter B Mux Control.

0 = Framer/Formatter A connected on-chip to Framer/Formatter

1 = Framer/Formatter A disconnected from Framer/Formatter B

RTDLPM

CCR4B.1

RX/TX Data Link Pin Mode. Determines the function of the

RCHCLKB/RLCLKB, RCHBLKB/RLINKB,

TCHCLKB/TLCLKB and TCHBLKB/TLINKB pins.

0 = RCHCLKB, RCHBLKB, TCHCLKB, TCHBLKB

1 = RLCLKB, RLINKB, TLCLKB, TLINKB

TIRFS

CCR4B.0

Transmit Idle Registers (TIR) Function Select. See Section

11 for timing details.

0 = TIRs define in which channels to insert idle code

1 = TIRs define in which channels to insert data from RSERB

(i.e., Per = Channel Loopback function)

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