RELEASED
PM4354 COMET-QUAD
DATASHEET
PMC-1990315
ISSUE 6
FOUR CHANNEL COMBINED E1/T1/J1
TRANSCEIVER / FRAMER
Pin Name Type Pin No. Function
MVIP System Side Interfaces
MVBTD
Input K1
MVIP Backplane Transmit Data (MVBTD). In Transmit Clock Slave: H-
MVIP mode, the 8.192 Mbit/s backplane transmit data streams to be
transmitted are input on MVBTD. MVBTD carries the channels of four
complete T1’s or E1’s formatted according to the H-MVIP standard. MVBTD
carries the backplane transmit data equivalent to BTPCM[1:4].
MVBTD is aligned to the common H-MVIP 16.384 MHz clock, CMV8MCLK,
the 4.096 MHz frame pulse clock, CMVFPC, and frame pulse, CMVFPB.
MVBTD is sampled on every second rising edge of CMV8MCLK as fixed by
the common H-MVIP frame pulse clock, CMVFPC.
When not in Transmit Clock Slave: H-MVIP mode, MVBTD is unused.
CASBTD / Input F4
BTPCM[1]
Channel Associated Signaling Backplane Transmit Data (CASBTD).
CASBTD carries the Channel Associated Signaling (CAS) stream to be
transmitted in the T1 DS0s or E1 timeslots. CASBTD carries CAS for four
complete T1’s or E1’s formatted according to the H-MVIP standard. CASBTD
carries the backplane transmit signaling equivalent to BTSIG[1:4]. CASBTD
carries the corresponding CAS values of the channel data carried in MVBTD.
CASBTD is aligned to the common H-MVIP 16.384MHz clock, CMV8MCLK,
the 4.096 MHz frame pulse clock, CMVFPC, and frame pulse, CMVFPB.
CASBTD is sampled on every second rising edge of CMV8MCLK as fixed by
the common H-MVIP frame pulse clock, CMVFPC.
CASBTD shares the same pin as BTPCM[1]. In Transmit Clock Slave: H-
MVIP Mode, this input is CASBTD. In all other Transmit modes, this input is
BTPCM[1].
CCSBTD
Input K2
Common Channel Signaling Backplane Transmit Data (CCSBTD). In T1
mode, CCSBTD carries the common channel signaling to be transmitted in
timeslot 24 of each of the 4 T1’s. In E1 mode, CCSBTD carries up to 3
timeslots (15,16, 31) to be transmitted in each of the 4 E1’s. CCSBTD is
formatted according to the H-MVIP standard.
CCSBTD is aligned to the common H-MVIP 16.384 MHz clock, CMV8MCLK,
the 4.096 MHz frame pulse clock, CMVFPC, and frame pulse, CMVFPB.
CCSBTD is sampled on every second rising edge of CMV8MCLK as fixed by
the common H-MVIP frame pulse clock, CMVFPC.
CCSBTD can be optionally enabled in either Transmit Clock Slave: Full
T1/E1 mode or Transmit Clock Slave: H-MVIP mode. In other modes,
CCSBTD is unused.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC. AND FOR ITS CUSTOMERS’ INTERNAL USE
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