SBSLITE™ Telecom Standard Product Data Sheet
Preliminary
Notes on Output Timing
1. Output propagation delay time is the time in nanoseconds from the 1.4 V point of the reference signal to
the 1.4 V point of the output.
2. Output propagation delays are measured with a 50 pF load on the outputs operating at 77.76 MHz
except where indicated.
18.5 JTAG Port Interface
Table 36 JTAG Port Interface (Figure 45)
Symbol
Description
TCK Frequency
Min
Max
4
Units
MHz
F
TCK
THI
THI
TCK HI Pulse Width
TCK LO Pulse Width
TMS Set-up time to TCK
TMS Hold time to TCK
TDI Set-up time to TCK
TDI Hold time to TCK
TCK Low to TDO Valid
TRSTB Pulse Width
100
100
25
ns
ns
ns
ns
ns
ns
ns
ns
TCK
TCK
TMS
TMS
TDI
TS
TH
TS
TH
TP
TV
25
25
25
TDI
2
35
TDO
TRSTB
100
Figure 45 JTAG Port Interface Timing
tHItck
tLOtck
TCK
tStdi
tHtdi
TDI
tStms
tHtms
TMS
tPtdo
TDO
tVtrstb
TRSTB
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2010883, Issue 2
288
PMC [ PMC-SIERRA, INC ]
