XRT94L31IB-L Exar Corporation, XRT94L31IB-L Datasheet - Page 126

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

Specifications of XRT94L31IB-L

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

XRT94L31
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
N
The Receive Section DCC output port provides a dedicated port for the user to extract out the Section DCC
(e.g., D1, D2 and D3) 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 Section DCC output port is presented below.
F
P
1.13
S
OTE
IGURE
ORT
YMBOL
t31
t32
: The values for t31 and t32 can be found in
29. I
RECEIVE SECTION DCC EXTRACTION OUTPUT PORT
T
ABLE
Falling edge of RxTOHClk to rising edge of RxE1F1E2Frame and
RxE1F1E2Valid
Falling edge of RxTOHClk to RxE1F1E2 output delay
RxE1F1E2Fr
RxE1F1E2Val
LLUSTRATION OF THE
RxTOHClk
RxE1F1E2
30: T
IMING
I
NFORMATION FOR THE
T
IMING
D
ESCRIPTION
W
AVE
t31
Table 30
-
FORM OF THE
R
ECEIVE
t32
126
.
O
RDER
R
ECEIVE
-W
IRE
O
B
RDER
YTE
-W
O
VERHEAD
IRE
-0.6ns
0.1ns
M
B
IN
YTE
.
O
O
UTPUT
VERHEAD
T
YP
.
P
ORT
O
REV. 1.0.1
UTPUT
0.4ns
0.3ns
M
AX
.