DS2196 datasheet(33/157 Pages) DALLAS

33 / 157 page

DS2196

33 of 157

TCR1B: TRANSMIT CONTROL REGISTER 1 FRAMER B (Address = D5 Hex)

(MSB)

(LSB)

LOTCMC

TFPT

TCPT

RBSE

GB7S

TFDLS

TBL

TYEL

SYMBOL

POSITION

NAME AND DESCRIPTION

LOTCMC

TCR1B.7

Loss Of Transmit Clock Mux Control. Determines whether

the transmit side of Formatter B should switch to MCLK if the

TCLK input should fail to transition (see Figure 1.1 for details).

0 = do not switch to MCLK if TCLKB stops

1 = switch to MCLK if TCLKB stops

TFPT

TCR1B.6

Transmit F–Bit Pass Through. (see note below)

0 = F bits sourced internally

1 = F bits sampled at TSERB

TCPT

TCR1B.5

Transmit CRC Pass Through. (see note below)

0 = source CRC6 bits internally

1 = CRC6 bits sampled at TSERB during F–bit time

RBSE

TCR1B.4

Robbed Bit Signaling Enable. (see note below)

0 = no signaling is inserted in any channel

1 = signaling is inserted in all channels (the TTR registers can

be used to block insertion on a channel by channel basis)

GB7S

TCR1B.3

Global Bit 7 Stuffing. (see note below)

0 = allow the TTR registers to determine which channels

containing all 0’s are to be Bit 7 stuffed

1 = force Bit 7 stuffing in all zero byte channels regardless of

how the TTR registers are programmed

TFDLS

TCR1B.2

TFDL Register Select. (see note below)

0 = source FDL or Fs bits from the internal TFDL register

(legacy FDL support mode)

1 = source FDL or Fs bits from the internal HDLC/BOC

controller or the TLINKB pin

TBL

TCR1B.1

Transmit Blue Alarm. (see note below)

0 = transmit data normally

1 = transmit an unframed all 1’s code at TPOSOB and

TNEGOB

TYEL

TCR1B.0

Transmit Yellow Alarm. (see note below)

0 = do not transmit yellow alarm

1 = transmit yellow alarm

NOTE:

For a description of how the bits in TCR1B affect the transmit side formatter, see Figure 21-7.

DS2196 датащи(PDF) 33 Page - Dallas Semiconductor

DS2196 датащи(HTML) 33 Page - Dallas Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL