PM4328-PI PMC-Sierra, Inc., PM4328-PI Datasheet - Page 41
PM4328-PI
Manufacturer Part Number
PM4328-PI
Description
Framer, T1|E1|T3 Standard Format, 324-BGA
Manufacturer
PMC-Sierra, Inc.
Datasheet
1.PM4328-PI.pdf
(250 pages)
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STANDARD PRODUCT
DATASHEET
PMC-2011596
Pin Name
XCLK/VCLK
DS3 System Side Interface
RGAPCLK/RSCLK Output Y3
RDATO
PROPRIETARY AND CONFIDENTIAL
Type
Input
Output AA5 Framer Receive Data (RDATO). RDATO is valid when
ISSUE 1
Pin
No.
E20 Crystal Clock Input (XCLK). This 24 times T1 or E1
Function
clock provides timing for many of the T1 and E1
portions of TECT3. XCLK is nominally a 37.056 MHz ±
32ppm, 50% duty cycle clock when configured for T1
modes and is nominally a 49.152 MHz ± 32ppm, 50%
duty cycle clock when configured for E1 modes.
This clock is required for all operating modes of the
TECT3.
Test Vector Clock (VCLK). This signal is used during
production testing.
Framer Recovered Gapped Clock (RGAPCLK).
RGAPCLK is valid when the TECT3 is configured as a
DS3 framer by setting the OPMODE[1:0] bits in the
Global Configuration register and the RXGAPEN bit in
the DS3 Master Unchannelized Interface Options
register.
RGAPCLK is the recovered clock and timing reference
for RDATO. RGAPCLK is held either high or low
during bit positions which correspond to overhead.
Framer Recovered Clock (RSCLK). RSCLK is valid
when the TECT3 is configured as a DS3 framer by
setting the OPMODE[1:0] bits in the Global
Configuration register.
RSCLK is the recovered clock and timing reference for
RDATO, RFPO/RMFPO, and ROVRHD.
This signal shares a signal pin with ICLK[1]. When
enabled for unchannelized DS3 operation this signal
will be RGAPCLK/RSCLK, otherwise it will be ICLK[1].
the TECT3 is configured as a DS3 framer by setting
the OPMODE[1:0] bits in the Global Configuration
register. RDATO is the received data aligned to
RFPO/RMFPO and ROVRHD.
RDATO is updated on either the falling or rising edge
of RGAPCLK or RSCLK, depending on the value of
28
HIGH DENSITY T1/E1 FRAMER
AND M13 MULTIPLEXER
PM4328 TECT3
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