XC2385A_14 Datasheet, PDF (135/141 Pages) Infineon Technologies AG – 16/32-Bit Single-Chip Microcontroller

XC2385A, XC2387A
XC2000 Family / Base Line
Electrical Parameters
Table 41 JTAG Interface Timing for Lower Voltage Range
Parameter
TCK clock period
TCK high time
TCK low time
TCK clock rise time
TCK clock fall time
TDI/TMS setup to TCK
rising edge
Symbol
t₁ SR
t₂ SR
t₃ SR
t₄ SR
t₅ SR
t₆ SR
Min.
50¹⁾
16
16
−
−
6
Values
Typ. Max.
−
−
−
−
−
−
−
8
−
8
−
−
Unit Note /
Test Condition
ns
2)
ns
ns
ns
ns
ns
TDI/TMS hold after TCK t₇ SR 6
−
−
ns
rising edge
TDO valid from TCK falling t₈ CC −
edge (propagation delay)³⁾
32
36
ns
TDO high impedance to t₉ CC −
valid output from TCK
falling edge⁴⁾³⁾
32
36
ns
TDO valid output to high t₁₀ CC −
impedance from TCK
falling edge³⁾
32
36
ns
TDO hold after TCK falling t₁₈ CC 5
−
−
ns
edge³⁾
1) The debug interface cannot operate faster than the overall system, therefore t₁ ≥ t_SYS.
2) Under typical conditions, the interface can operate at transfer rates up to 20 MHz.
3) The falling edge on TCK is used to generate the TDO timing.
4) The setup time for TDO is given implicitly by the TCK cycle time.
Data Sheet
135
V2.12, 2014-06