DS3141 datasheet(48/88 Pages) DALLAS

48 / 88 page

DS3141/DS3142/DS3143/DS3144 Single/Dual/Triple/Quad DS3/E3 Framers

48 of 88

BCR4

BERT Control Register 4

33h

Bit #

Name

AWC7

AWC6

AWC5

AWC4

AWC3

AWC2

AWC1

AWC0

Default

Bits 0 to 7: Alternating Word Count Rate (AWC[7:0]). When the BERT is programmed in the alternating word

mode, it transmits the word in register RP[15:0] a number of times equal to AWC[7:0] + 1 and then transmits the

word loaded in RP[31:16] the same number of times. The valid count range is from 00h to FFh. These bits are

ignored if the BERT is programmed for a pseudorandom pattern or a repetitive pattern.

AWC VALUE

ALTERNATING COUNT ACTION

00h

Send the word in RP[15:0] 1 time followed by the word in RP[31:16] 1 time…

01h

Send the word in RP[15:0] 2 times followed by the word in RP[31:16] 2 times…

02h

Send the word in RP[15:0] 3 times followed by the word in RP[31:16] 3 times…

FFh

Send the word in RP[15:0] 256 times followed by the word in RP[31:16] 256 times…

BSR

BERT Status Register

38h

Bit #

Name

N/A

RA1

RA0

N/A

BBCO

BECO

SYNC

Default

—

Bit 0: Synchronization Status (SYNC). This real-time status bit is set when the incoming pattern matches for 32

consecutive bit positions. SYNC bit is cleared when six or more bits out of 64 are received in error.

Bit 1: BERT Error-Counter Overflow (BECO). This real-time status bit is set when the 24-bit BERT error counter

(BEC) saturates. BECO is cleared when BCR1:LC is toggled to load the error counts.

Bit 2: BERT Bit-Counter Overflow (BBCO). This real-time status bit is set when the 32-bit BERT bit counter

(BBC) saturates. BBCO is cleared when BCR1:LC is toggled to load the error counts.

Bit 4: Receive All Zeros (RA0). This real-time status bit is set when 32 consecutive 0s are received. RA0 is

cleared when a 1 is received.

Bit 5: Receive All Ones (RA1). This real-time status bit is set when 32 consecutive 1s are received. RA1 is

cleared when a 0 is received.

DS3141 Datasheet(PDF) 48 Page - Dallas Semiconductor

DS3141 Datasheet(HTML) 48 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

Datasheet Download

Link URL