XRT94L31IB Exar Corporation, XRT94L31IB Datasheet - Page 127

• Manufacturer Part Number: XRT94L31IB
• Description: IC MAPPER DS3/E3/STS-1 504TBGA
• Manufacturer: Exar Corporation

Specifications of XRT94L31IB

• Applications: Network Switches
• Interface: Bus
• Voltage - Supply: 3.14 V ~ 3.47 V
• Package / Case: 504-LBGA
• Mounting Type: Surface Mount
• Product: Mapper
• Lead Free Status / RoHS Status: Contains lead / RoHS Compliant

REV. 1.0.1
N
The Receive Line DCC output port provides a dedicated port for the user to extract out the Line DCC (e.g., D4
through D12) bytes from that within the incoming STS-3/STM-1 data-stream. The user should note that all of
the output signals (of this port) are updated upon the falling edge of RxTOHClk. The timing wave-form and
information for the Receive Line DCC output port is presented below.
F
F
1.14
S
OTE
IGURE
IGURE
YMBOL
t33
t34
: The values for t34 and t34 can be found in
30. I
31. I
RECEIVE LINE DCC EXTRACTION OUTPUT PORT
RxSDCCVal
Falling edge of RxTOHClk to rising edge of RxSDCCValid
Falling edge of RxTOHClk to RxSDCC output delay
RxLDCCVal
RxTOHClk
LLUSTRATION OF THE
LLUSTRATION OF THE
RxTOHClk
RxSDCC
RxLDCC
T
ABLE
31: T
IMING
T
T
I
NFORMATION FOR THE
IMING
IMING
D
ESCRIPTION
W
W
AVE
AVE
t33
t35
Table 31
-
-
FORM OF THE
FORM OF THE
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
t34
t36
127
.
R
ECEIVE
R
R
ECEIVE
ECEIVE
S
ECTION
S
L
INE
ECTION
DCC O
DCC O
DCC O
UTPUT
M
UTPUT
0ns
0ns
IN
.
UTPUT
P
P
ORT
ORT
T
P
YP
ORT
XRT94L31
.
0.5ns
0.4ns
M
AX
.