Data Sheet
June 2003
TTSV02622 STS-24 Backplane Transceiver
Timing Characteristics
(continued)
SYS_CLK
SYS_FP
ROW #1
ROW #9
INPUT
PARALLEL
BUS
36 bytes TOH
GUARD BAND
(4 TOH CLK)
1044 bytes SPE
GUARD BAND
(4 TOH CLK)
T
P
T
HI
T
LO
1044 bytes SPE
36 bytes TOH
TOH_CLK
T
S
TX TOH_
CLK_ENA
T
H
TOH SERIAL
INPUT
MSBIT(7)
OF B1 BYTE
STS-1 #1
BIT 6
OF B1 BYTE
STS-1 #1
Figure 18. Input Serial Port Timing
Table 24. Input Serial Port Timing Requirements
Symbol
T
P
T
HI
T
LO
T
S
T
H
Clock Period
Clock High Time
Clock Low Time
Data Setup Time
Data Hold Time
Parameter
Min
12.86
5.1
5.1
3
0
Typ
—
—
—
—
—
Max
40
24
24
—
—
Unit
ns
ns
ns
ns
ns
Agere Systems Inc.
59
AGERE [ AGERE SYSTEMS ]
