MSP430x22x2, MSP430x22x4
MIXED SIGNAL MICROCONTROLLER
SLAS504A 鈭?JULY 2006 鈭?REVISED DECEMBER 2006
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
JTAG and Spy-Bi-Wire Interface
PARAMETER
fSBW
tSBW,Low
tSBW,En
tSBW,Ret
fTCK
RInternal
Spy-Bi-Wire input frequency
Spy-Bi-Wire low clock pulse length
Spy-Bi-Wire enable time
(TEST high to acceptance of first clock edge, see
Note 1)
Spy-Bi-Wire return to normal operation time
TCK input frequency (see Note 2)
Internal pull-down resistance on TEST
TEST
CONDITIONS
VCC
2.2 V / 3 V
2.2 V / 3 V
2.2 V/ 3 V
2.2 V/ 3 V
2.2 V
3V
2.2 V/ 3 V
15
0
0
25
60
MIN
0
0.025
TYP
MAX
20
15
1
100
5
10
90
UNIT
MHz
us
us
us
MHz
MHz
k鈩?/div>
NOTES: 1. Tools accessing the Spy-Bi-Wire interface need to wait for the maximum tSBW,En time after pulling the TEST/SBWCLK pin high
before applying the first SBWCLK clock edge.
2. fTCK may be restricted to meet the timing requirements of the module selected.
JTAG Fuse (see Note 1)
PARAMETER
VCC(FB)
VFB
IFB
tFB
Supply voltage during fuse-blow condition
Voltage level on TEST for fuse-blow
Supply current into TEST during fuse blow
Time to blow fuse
TEST
CONDITIONS
TA = 25擄C
VCC
MIN
2.5
6
7
100
1
TYP
MAX
UNIT
V
V
mA
ms
NOTES: 1. Once the fuse is blown, no further access to the JTAG/Test and emulation feature is possible and is switched to bypass mode.
56
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
                         
                        
                        prev
                        
                        next