PM4328-PI PMC-Sierra, Inc., PM4328-PI Datasheet - Page 207
![no-image](/images/no-image-200.jpg)
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
PROPRIETARY AND CONFIDENTIAL
ESIG[x]
CECLK
CEFP
ESIG[x]
ED[x]
CECLK
CEFP
ED[x]
Figure 69: T1 Egress Interface 2.048 MHz Clock Slave: External Signaling
Mode
The Egress Interface is configured for the 2.048 MHz Clock Slave: External
Signaling Mode by writing to EMODE[2:0] in theT1/E1 Egress Serial Interface
Mode Select register. The 2.048 MHz internally gapped clock mode is selected
by writing CECLK2M to logic 1 in the Master Egress Slave Mode Serial Interface
register. In the illustrated case, CEFP specifies frame alignment and is required
to pulse high for one cycle every frame. ESIG[x] should carry the signaling bits
for each channel in bits 5,6,7 and 8; the signaling bits will be inserted into the
data stream by the transmitter. If parity checking is enabled, a parity bit should
be inserted on ED[x] and ESIG[x] in the first bit of each frame. The values of the
don’t-care bits are not important, except that they will be used in the backplane
parity check if it is enabled.
Figure 70: T1 and E1 Egress Interface Clock Slave: Clear Channel Mode
F-Bit or
Parity
ECLK[x]
F
ED[x]
Ch24
Don't Care
Don't Care
8
1 2 3 4 5 6 7 8
Ch1
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
Channel 1
ISSUE 1
Ch2
A B C D
Ch3
1 2 3 4 5 6 7 8
Channel 2
A B C D
Ch4
194
Ch5
1 2 3 4 5 6 7 8
Channel 3
Ch6
A B C D
Ch7
Don't Care
"filler"
Don't Care
HIGH DENSITY T1/E1 FRAMER
Ch23
AND M13 MULTIPLEXER
Ch24
1 2 3 4 5 6 7 8
PM4328 TECT3
Channel 4
A B C D
Ch1
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