PM8610-BIAP PMC [PMC-Sierra, Inc], PM8610-BIAP Datasheet - Page 312

• Manufacturer Part Number: PM8610-BIAP
• Description: SBS Telecom Standard Product Data Sheet Preliminary
• Manufacturer: PMC [PMC-Sierra, Inc]

14.4
14.5
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2000168, Issue 3
Figure 34 Incoming 77 MHz TelecomBus Functional Timing
Incoming 19 MHz TelecomBus Functional Timing
Figure 35 shows the Incoming TelecomBus interface configured for 19.44 MHz mode. The figure
is very similar to Figure 34 with one quarter the number of synchronous payload envelopes.
Timing is provided by a 19.44 MHz SREFCLK sourced from SREFCLK19 which is generated
by the SBS from the 77.76 MHz SYSCLK.
Figure 35 Incoming 19 MHz TelecomBus Functional Timing
Transmit Serial LVDS Functional Timing
The delay through the SBS is dependent on the operating mode. The timing from the Incoming
telecom or SBI bus to the LVDS link differs between TelecomBus mode and SBI mode. The
timing when in SBI mode is also dependent on whether the SBS is switching at the DS0 level and
above or is switching only at the tributary level. When switching only tributaries in SBI mode we
have the same delay through the SBS as when switching tributaries in TelecomBus mode.
IC1FP(IC1J1V1)
IC1FP(IC1J1V1)
IDATA[x][7:0]
SREFCLK19
IDATA[1][7:0]
SREFCLK
SREFCLK
SYSCLK
ITAIS[x]
ITPL[x]
ITAIS[1]
ITPL[1]
IDP[x]
IPL[x]
IV5[x]
ICMP
IDP[1]
IPL[1]
IV5[1]
ICMP
A2
S4,3
A2
Vaild
S1,1
J0
S2,1
Z0
Vaild
J0
S3,1
Z0
S4,1
Z0
S1,2
X
Z0
S2,2
Z0
Z0
S3,2
Z0
S4,2
Z0
S1,3
Z0
S2,3
Z0
Z0
S3,3
Z0
X
S4,3
Z0
B522
S1,1
B522 - J1
B522
S2,1
X
S3,1
B522
S4,1
B522
X
B522 - J1
X
SBS Telecom Standard Product Data Sheet
S4,3
H2
B522 - J1
S1,1
H3
S2,1
H3
S3,1
H3
S4,1
H3
B523 - V1
X
S1,2
H3
S2,2
H3
S3,2
H3
S4,2
H3
S1,3
H3
S2,3
H3
S3,3
H3
S4,3
S1,3
H3
H3
S1,1
B0
Preliminary
X
S2,1
B0
S3,1
X
B0
S4,1
S1,1
B0
B0
S1,2
312
B0
S2,2
B0
X
X
S3,2
B0
X
S1,2
B0