TXC-03453BROG Transwitch Corporation, TXC-03453BROG Datasheet - Page 22

• Manufacturer Part Number: TXC-03453BROG
• Manufacturer: Transwitch Corporation

Specifications of TXC-03453BROG

• Screening Level: Industrial
• Package Type: BGA
• Lead Free Status / Rohs Status: Compliant

September 2003
TL3M
TXC-03453B
PRELIMINARY TXC-03453B-MB, Ed. 3
PATH OVERHEAD BYTE INTERFACE
Where n represents the channel number, channels 1 through 3.
Symbol
R1POD
R2POD
R3POD
R1POC
R2POC
R3POC
R1POF
R2POF
R3POF
T1POD
T2POD
T3POD
T1POC
T2POC
T3POC
T1POF
T2POF
T3POF
Lead No.
C10
C15
C13
C18
B10
A10
A13
A20
A17
B20
B13
B16
C6
C8
A5
B8
B5
A7
I/O/P
O
O
O
O
O
I
LVCMOS
LVCMOS
LVCMOS
LVCMOS
LVCMOS
LVTTL
Type
4mA
4mA
4mA
4mA
4mA
DATA SHEET
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Receive Path Overhead Byte Data: These leads pro-
vide a serial output for the nine path overhead bytes
associated with each of the three TUG-3s or STS-1s.
The nine POH bytes are clocked out on falling edges of
the corresponding clock signal (RnPOC).
Receive Path Overhead Byte Framing: A positive one
(RnPOC) clock cycle-wide output framing pulse that is
synchronous to the J1 byte location in the receive path
overhead data signal (RnPOD). This signal is also used
as the framing pulse for the receive alarm indication port
output data signal (RnAID).
Receive Path Overhead Byte Clock: A gapped clock
used for clocking out the receive path overhead bytes
(RnPOD), and receive alarm indication port data (RnAID)
for each channel.
Transmit Path Overhead Byte Data: A serial input for
the following path overhead bytes: J1, C2, G1, F2, H4,
F3, K4, and N1 bytes. The POH bytes are clocked in on
rising edges of the clock signal (TnPOC). The bit times
corresponding to the B3 byte are ignored.
Transmit Path Overhead Byte Framing: A positive one
(TnPOC) clock cycle-wide output framing pulse that
determines the start of the J1 byte in transmit path over-
head byte data signal (TnPOD).
Transmit Path Overhead Byte Clock: A gapped output
clock used for clocking in the transmit path overhead
bytes from an external circuit.
Name/Function