參數(shù)資料
型號: TPS65920BZCH
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA139
封裝: 10 X 10 MM, 0.65 MM PITCH, GREEN, PLASTIC, NFBGA-139
文件頁數(shù): 5/115頁
文件大小: 1232K
代理商: TPS65920BZCH
JTAG.TCK
JTAG.TDI
JTAG.TMS
JTAG.TDO
JL1
JL2
JL7
JL3
JL4
JL6
JL5
jtag_inter_time_wcs019
SWCS037G
– MAY 2008 – REVISED APRIL 2011
Figure 12-5. JTAG Interface Timing
The input timing requirements are given by considering a rising or falling edge of 7 ns.
Table 12-9. JTAG Interface
—Timing Requirements
Notation
Parameter
Min
Max
Unit
Clock
JL1
tc(TCK)
Cycle time, JTAG.TCK period
30
ns
JL2
tw(TCK)
Pulse duration, JTAG.TCK high or low(1)
0.48*P
0.52*P
ns
Read Timing
Setup time, JTAG.TDI valid before JTAG.TCK
JL3
tsu(TDIV-TCKH)
8
ns
high
JL4
th(TDIV-TCKH)
Hold time, JTAG.TDI valid after JTAG.TCK high
5
ns
Setup time, JTAG.TMS valid before JTAG.TCK
JL5
tsu(TMSV-TCKH)
8
ns
high
JL6
th(TMSV-TCKH)
Hold time, JTAG.TMS valid after JTAG.TCK high
5
ns
(1)
P = JTAG.TCK clock period
The capacitive load is 35 pF.
Table 12-10. JTAG Interface
—Switching Characteristics
Notation
Parameter
Min
Max
Unit
Write Timing
JL7
td(TCK-TDOV))
Delay time, JTAG, TCK active edge to JTAG.TDO valid
0
14
ns
102
Timing Requirements and Switching Characteristics
Copyright
2008–2011, Texas Instruments Incorporated
focus.ti.com: TPS65930/TPS65920
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