11-8
DSP56309UM/D MOTOROLA
JTAG Port
TAP Controller
The parallel output of the instruction register is reset to 0010 in the Test-Logic-Reset
controller state, which is equivalent to the IDCODE instruction.
During the Capture-IR controller state, the parallel inputs to the instruction shift register
are loaded with 01 in the LSBs as required by the standard. The two MSBs are loaded
with the values of the core status bits OS1 and OS0 from the OnCE controller. See
Section 10ÑOn-Chip Emulation Module
for a description of the status bits.
11.3.2.1
EXTEST (B[3:0] = 0000)
The external test (EXTEST) instruction selects the BSR. EXTEST also asserts internal reset
for the DSP56300 core system logic to force a predictable internal state while performing
external boundary scan operations.
By using the TAP, the BSR is capable of the following:
¥ Scanning user-defined values into the output buffers
¥ Capturing values presented to input signals
Table 11-1
JTAG Instructions
Code
Instruction
B3
B2
B1
B0
0
0
0
0
EXTEST
0
0
0
1
SAMPLE/PRELOAD
0
0
1
0
IDCODE
0
0
1
1
CLAMP
0
1
0
0
HI-Z
0
1
0
1
RESERVED
0
1
1
0
ENABLE_ONCE
0
1
1
1
DEBUG_REQUEST
1
0
x
x
RESERVED
1
1
0
x
RESERVED
1
1
1
0
RESERVED
1
1
1
1
BYPASS
Содержание DSP56309
Страница 25: ...xxii DSP56309UM D MOTOROLA Figure D 25 Port E Registers PCRE PRRE PDRE D 39 ...
Страница 30: ...MOTOROLA DSP56309UM D 1 1 SECTION 1 DSP56309 OVERVIEW ...
Страница 47: ...1 18 DSP56309UM D MOTOROLA DSP56309 Overview DSP56309 Architecture Overview ...
Страница 48: ...MOTOROLA DSP56309UM D 2 1 SECTION 2 SIGNAL CONNECTION DESCRIPTIONS ...
Страница 85: ...2 38 DSP56309UM D MOTOROLA Signal Connection Descriptions OnCE JTAG Interface ...
Страница 86: ...MOTOROLA DSP56309UM D 3 1 SECTION 3 MEMORY CONFIGURATION ...
Страница 104: ...MOTOROLA DSP56309UM D 4 1 SECTION 4 CORE CONFIGURATION ...
Страница 124: ...MOTOROLA DSP56309UM D 5 1 SECTION 5 GENERAL PURPOSE I O ...
Страница 125: ...5 2 DSP56309UM D MOTOROLA General Purpose I O 5 1 INTRODUCTION 5 3 5 2 PROGRAMMING MODEL 5 3 ...
Страница 128: ...MOTOROLA DSP56309UM D 6 1 SECTION 6 HOST INTERFACE HI08 ...
Страница 166: ...MOTOROLA DSP56309UM D 7 1 SECTION 7 ENHANCED SYNCHRONOUS SERIAL INTERFACE ESSI ...
Страница 212: ...MOTOROLA DSP56309UM D 8 1 SECTION 8 SERIAL COMMUNICATION INTERFACE SCI ...
Страница 241: ...8 30 DSP56309UM D MOTOROLA Serial Communication Interface SCI GPIO Signals and Registers ...
Страница 242: ...MOTOROLA DSP56309UM D 9 1 SECTION 9 TRIPLE TIMER MODULE ...
Страница 269: ...9 28 DSP56309UM D MOTOROLA Triple Timer Module Timer Operational Modes ...
Страница 270: ...MOTOROLA DSP56309UM D 10 1 SECTION 10 ON CHIP EMULATION MODULE ...
Страница 302: ...MOTOROLA DSP56309UM D 11 1 SECTION 11 JTAG PORT ...
Страница 369: ...C 22 DSP56309UM D MOTOROLA DSP56309 BSDL Listing ...
Страница 370: ...MOTOROLA DSP56309UM D D 1 APPENDIX D PROGRAMMING REFERENCE ...
Страница 405: ......
Страница 409: ......