DS2196 datasheet(47/157 Pages) DALLAS

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DS2196

47 of 157

CCR5B: COMMON CONTROL REGISTER 5 FRAMER B (Address = B9 Hex)

(MSB)

(LSB)

TJC

–

TCM4

TCM3

TCM2

TCM1

TCM0

SYMBOL

POSITION

NAME AND DESCRIPTION

TJC

CCR5B.7

Transmit Japanese CRC6 Enable.

0 = use ANSI/AT&T/ITU CRC6 calculation (normal operation)

1 = use Japanese standard JT–G704 CRC6 calculation

–

CCR5B.6

Not Assigned. Must be set to 0 when written.

–

CCR5B.5

Not Assigned. Must be set to 0 when written.

TCM4

CCR5B.4

Transmit Channel Monitor Bit 4. MSB of a channel decode

that determines which transmit channel data will appear in the

TDS0M register. See Section 10 for details.

TCM3

CCR5B.3

Transmit Channel Monitor Bit 3.

TCM2

CCR5B.2

Transmit Channel Monitor Bit 2.

TCM1

CCR5B.1

Transmit Channel Monitor Bit 1.

TCM0

CCR5B.0

Transmit Channel Monitor Bit 0. LSB of the channel

decode.

CCR6A: COMMON CONTROL REGISTER 6 FRAMER A (Address = 1E Hex)

(MSB)

(LSB)

RJC

EAMS

MECU

RCM4

RCM3

RCM2

RCM1

RCM0

SYMBOL

POSITION

NAME AND DESCRIPTION

RJC

CCR6A.7

Receive Japanese CRC6 Enable.

0 = use ANSI/AT&T/ITU CRC6 calculation (normal operation)

1 = use Japanese standard JT–G704 CRC6 calculation

EAMS

CCR6A.6

Error Accumulation Mode Select.

0 = CCR3A.2 determines accumulation time

1 = CCR6A.5 determines accumulation time

MECU

CCR6A.5

Manual Error Counter Update. When enabled by CCR6A.6,

the changing of this bit from a 0 to a 1 allows the next clock

cycle to load the error counter registers with the latest counts

and reset the counters. The user must wait a minimum of 972

ns (1.5 clock periods) before reading the error count registers to

allow for proper update.

RCM4

CCR6A.4

Receive Channel Monitor Bit 4. MSB of a channel decode

that determines which receive channel data will appear in the

RDS0M register. See Section 10 for details.

RCM3

CCR6A.3

Receive Channel Monitor Bit 3.

RCM2

CCR6A.2

Receive Channel Monitor Bit 2.

RCM1

CCR6A.1

Receive Channel Monitor Bit 1.

RCM0

CCR6A.0

Receive Channel Monitor Bit 0. LSB of the channel decode.

CCR6B: COMMON CONTROL REGISTER 6 FRAMER B (Address = BE Hex)

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