MSP430FR573x
MSP430FR572x
SLAS639D –JULY 2011–REVISED AUGUST 2012
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JTAG and Spy-Bi-Wire Interface
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
Spy-Bi-Wire input frequency
VCC
MIN
0
TYP
MAX UNIT
fSBW
2 V, 3 V
2 V, 3 V
2 V, 3 V
20 MHz
tSBW,Low
tSBW, En
tSBW,Rst
Spy-Bi-Wire low clock pulse duration
0.025
15
1
µs
µs
(1)
Spy-Bi-Wire enable time (TEST high to acceptance of first clock edge)
Spy-Bi-Wire return to normal operation time
19
0
35
5
µs
2 V
3 V
MHz
(2)
fTCK
TCK input frequency, 4-wire JTAG
0
10 MHz
50 kΩ
Rinternal
Internal pulldown resistance on TEST
2 V, 3 V
20
35
(1) Tools accessing the Spy-Bi-Wire interface must wait for the tSBW,En time after pulling the TEST/SBWTCK pin high before applying the
first SBWTCK clock edge.
(2) fTCK may be restricted to meet the timing requirements of the module selected.
68
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