PM6344 datasheet(33/256 Pages) PMC

33 / 256 page

STANDARD PRODUCT

PMC-Sierra, Inc.

PM6344 EQUAD

PMC-951013

ISSUE 5

QUADRUPLE E1 FRAMER

Pin Name

Type

Pin No.

Function

BTPCM[1]

BTPCM[2]

BTPCM[3]

BTPCM[4]/

Input

Backplane Transmit PCM (BTPCM[4:1]). The non-

return to zero, digital data streams to be transmitted are

input on these pins when the backplane is configured for

non-multiplexed single-rail input. The BTPCM[x] signal is

sampled on the rising edge of the associated BTCLK[x].

BTDP[1]

BTDP[2]

BTDP[3]

BTDP[4]

Backplane Transmit Positive Line Pulse (BTDP[4:1]).

The positive pulse of the dual-rail signals to be

transmitted is input on these pins when the backplane is

configured for non-multiplexed dual-rail input. In dual-

rail input mode, the BTDP[x] input by-passes the

transmitter and is fed directly into the DJAT. BTDP[x] is

sampled on the rising edge of the associated BTCLK[x].

MTD

Multiplexed Transmit Data (MTD). MTD shares a pin

with BTPCM[1]. BTPCM[4:2] are unused when the

multiplex enable (MENB) input is asserted low. When

the multiplex enable (MENB) input is asserted low, the

four sets of PCM and signaling streams are expected in

a single bit interleaved 16.384 Mbit/s serial stream.

Frame alignment is indicated by MTFP. MTD is sampled

on the rising edge of MTCLK.

BTSIG[1]

BTSIG[2]

BTSIG[3]

BTSIG[4]

Input

Backplane Transmit Signaling (BTSIG[4:1]). The

BTSIG[4:1] input signals contain the signaling bits for

each channel in the transmit data frame, repeated for

the entire superframe. Each signal is input on the

BTSIG[x] pin when the backplane is configured for non-

multiplexed single-rail input. Each channel's signaling

bits are in bit locations 5,6,7,8 of the channel and are

channel-aligned with the BTPCM[x] data stream.

BTSIG[x] is sampled on the rising edge of the

associated BTCLK[x].

If frame alignment is not required, BTFP[x] may be tied

to power or ground.

BTDN[1]

BTDN[2]

BTDN[3]

BTDN[4]

Backplane Transmit Negative Line Pulse (BTDN[4:1]).

The negative pulse of the dual-rail signal to be

transmitted is input on these pins when the backplane is

configured for non-multiplexed dual-rail input. In dual-

rail input mode, the BTDN[x] input by-passes the

transmitter and is fed directly into the DJAT. BTDN[x] is

sampled on the rising edge of the associated BTCLK[x].

These inputs are unused when the multiplex enable

(MENB) input is asserted low.

PM6344 Datasheet(PDF) 33 Page - PMC-Sierra, Inc

PM6344 Datasheet(HTML) 33 Page - PMC-Sierra, Inc

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

Datasheet Download

Link URL