XRT94L31IB-L Exar Corporation, XRT94L31IB-L Datasheet - Page 118

• 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 Transmit TOH Overhead Input Port is used to insert the users own value for the TOH bytes into the
outbound STS-3/STM-1 data-stream.
N
The timing wave-form and information for the Transmit TOH Overhead Input Port is presented below.
F
STM-0 T
STM-1 M
1.5
S
OTE
OTE
IGURE
T
YMBOL
ABLE
t13
t14
: The value for t13 and t14 can be found in
: The TxTOHIns and the TxTOH input pins are sampled (by the Transmit TOH Overhead Input Port) upon the rising
edge of TxTOHClk. All of the remaining signals (e.g., TxTOHFrame and TxTOHEnable) are updated upon the
falling edge of TxTOHClk.
21. A
TRANSMIT TOH OVERHEAD INPUT PORT
22: T
ELECOM
ODE
TxA_D[7:0], TxA_PL, TxA_C1J1, TxA_ALARM and TxA_DP to rising edge
of TxA_CLK set-up time requirements
Rising edge of TxA_CLK to TxA_D[7:0], TxA_PL, TxA_C1J1, TxA_ALARM
and TxA_DP hold time requirements
TxA_CLK
TxA_C1J1
TxA_D[7:0]
)
TxA_PL
N
IMING
I
LLUSTRATION OF THE
B
US
WHEN IT HAS BEEN CONFIGURED TO OPERATE IN THE
I
NFORMATION FOR THE
I
NTERFACE ASSOCIATED WITH
t13
A2
t14
W
C1
D
AVEFORMS OF THE
ESCRIPTION
T
RANSMIT
Table 22
C1
C
STS-1/STM-0 T
HANNEL
118
.
S
IGNALS THAT ARE
0 (
WHEN CONFIGURED TO OPERATE IN THE
J1
ELECOM
STS-3/STM-1 M
Data
B
I
NPUT VIA THE
US
I
NTERFACE
M
0 ns
4ns
IN
Data
.
ODE
T
,
RANSMIT
T
FOR
YP
.
C
HANNEL
REV. 1.0.1
STS-1/
STS-3/
M
AX
0
.