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DSP56857 Datasheet(PDF) 481 Page - Freescale Semiconductor, Inc

Part # DSP56857
Description  Digitial Signal Controller
PDF  662 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

DSP56857 Datasheet(HTML) 481 Page - Freescale Semiconductor, Inc

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TAP Controller
JTAG Port, Rev. 4
Freescale Semiconductor
17-19
* Test mode
17.8 TAP Controller
The TAP Controller is a synchronous 16-bit finite state machine illustrated in Figure 17-7. It
responds to changes at the TMS and TCK pins. Transitions from one state to another will occur
on the rising edge of TCK. The value shown adjacent to each state transition represents the signal
present on TMS at the time of a rising edge of TCK.
The TDO pin will remain in the high impedance state except during the Shift-DR and Shift-IR
TAP Controller states. In these controller states, TDO will update on the falling edge of TCK.
TDI is sampled on the rising edge of TCK.
The TAP Controller will execute the last instruction decoded until a new instruction is entered at
the Update-IR state, or Test-Logic-Reset is entered.
253
SC02
Input/Output
BC_7
121
121
93
97
136
E6
254
Pull-up
BC_1
255
Control
BC_2
256
D11
Input/Output
BC_7
122
122
94
—
137
D5
257
Pull-up
BC_1
258
Control
BC_2
259
D12
Input/Output
BC_7
123
123
95
—
138
B4
260
Pull-up
BC_1
261
Control
BC_2
262
D13
Input/Output
BC_7
126
126
98
—
142
C4
263
Pull-up
BC_1
264
Control
BC_2
265
D14
Input/Output
BC_7
127
127
99
—
143
F6
266
Pull-up
BC_1
267
Control
BC_2
268
D15
Input/Output
BC_7
128
128
100
—
144
B3
269
Pull-up
BC_1
270
Control
BC_2
Table 17-5. BSR Contents for 5685x (Continued)
Bit
Number
Pin/Bit
Name
Pin Type
BSR Cell
853 Pin
Number
(128 LQFP
Package)
854 Pin
Number
(128 LQFP
Package)
855 Pin
Number
(100 LQFP
Package)
857 Pin
Number
(100 LQFP
Package)
858 Pin
Number
(144 LQFP
Package)
858 Pin
Number
(144
MAPBGA
Package)



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