mcf52258 Freescale Semiconductor, Inc, mcf52258 Datasheet - Page 40

• Manufacturer Part Number: mcf52258
• Description: Mcf52259 Coldfire Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Electrical Characteristics
40
1
J1
J2
J3
J4
J5
J6
J7
J8
J9
J10
J11
J12
J13
J14
Num
JTAG_EN is expected to be a static signal. Hence, it is not associated with any timing.
TCLK
(input)
TCLK frequency of operation
TCLK cycle period
TCLK clock pulse width
TCLK rise and fall times
Boundary scan input data setup time to TCLK rise
Boundary scan input data hold time after TCLK rise
TCLK low to boundary scan output data valid
TCLK low to boundary scan output high Z
TMS, TDI input data setup time to TCLK rise
TMS, TDI Input data hold time after TCLK rise
TCLK low to TDO data valid
TCLK low to TDO high Z
TRST assert time
TRST setup time (negation) to TCLK high
Characteristics
Table 27. JTAG and Boundary Scan Timing
J4
V
MCF52259 ColdFire Microcontroller, Rev. 1
IH
Figure 16. Test Clock Input Timing
V
IL
1
J3
J4
J2
Symbol
t
t
t
t
t
t
t
t
TAPBST
TAPBHT
TRSTST
TRSTAT
TDODZ
f
t
BSDST
BSDHT
t
t
TDODV
t
t
JCYC
JCYC
BSDV
BSDZ
JCRF
JCW
J3
4 × t
Min
100
DC
26
26
10
10
0
4
0
0
4
0
0
CYC
Freescale Semiconductor
Max
1/4
33
33
26
—
—
—
—
—
—
—
—
3
8
f
Unit
sys/2
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns