IEEE 1149.1 Test Access Port Controller (JTAGC)
MPC5606S Microcontroller Reference Manual, Rev. 7
Freescale Semiconductor
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internal system reset for the MCU to force a predictable internal state while performing external boundary
scan operations.
19.8.4.4
IDCODE instruction
IDCODE selects the 32-bit device identification register as the shift path between TDI and TDO. This
instruction allows interrogation of the MCU to determine its version number and other part identification
data. IDCODE is the instruction placed into the instruction register when the JTAGC is reset.
19.8.4.5
SAMPLE instruction
The SAMPLE instruction obtains a sample of the system data and control signals present at the MCU input
pins and just before the boundary scan register cells at the output pins. This sampling occurs on the rising
edge of TCK in the capture-DR state when the SAMPLE instruction is active. The sampled data is viewed
by shifting it through the boundary scan register to the TDO output during the Shift-DR state. There is no
defined action in the Update-DR state. Both the data capture and the shift operation are transparent to
system operation.
19.8.4.6
SAMPLE/PRELOAD instruction
The SAMPLE/PRELOAD instruction has two functions:
•
The SAMPLE part of the instruction samples the system data and control signals on the MCU input
pins and just before the boundary scan register cells at the output pins. This sampling occurs on the
rising-edge of TCK in the capture-DR state when the SAMPLE/PRELOAD instruction is active.
The sampled data is viewed by shifting it through the boundary scan register to the TDO output
during the shift-DR state. Both the data capture and the shift operation are transparent to system
operation.
•
The PRELOAD part of the instruction initializes the boundary scan register cells before selecting
the EXTEST instructions to perform boundary scan tests. This is achieved by shifting in
initialization data to the boundary scan register during the shift-DR state. The initialization data is
transferred to the parallel outputs of the boundary scan register cells on the falling edge of TCK in
the Update-DR state. The data is applied to the external output pins by the EXTEST instruction.
System operation is not affected.
19.8.5
Boundary scan
The boundary scan technique allows signals at component boundaries to be controlled and observed
through the shift-register stage associated with each pad. Each stage is part of a larger boundary scan
register cell, and cells for each pad are interconnected serially to form a shift-register chain around the
border of the design. The boundary scan register consists of this shift-register chain, and is connected
between TDI and TDO when the EXTEST, SAMPLE, or SAMPLE/PRELOAD instructions are loaded.
The shift-register chain contains a serial input and serial output, as well as clock and control signals.
Содержание MPC5602S
Страница 76: ...Overview MPC5606S Microcontroller Reference Manual Rev 7 74 Freescale Semiconductor...
Страница 82: ...Memory Map MPC5606S Microcontroller Reference Manual Rev 7 80 Freescale Semiconductor...
Страница 112: ...Signal Description MPC5606S Microcontroller Reference Manual Rev 7 110 Freescale Semiconductor...
Страница 166: ...Analog to Digital Converter ADC MPC5606S Microcontroller Reference Manual Rev 7 164 Freescale Semiconductor...
Страница 182: ...Boot Assist Module BAM MPC5606S Microcontroller Reference Manual Rev 7 180 Freescale Semiconductor...
Страница 234: ...Clock Description MPC5606S Microcontroller Reference Manual Rev 7 232 Freescale Semiconductor...
Страница 286: ...Crossbar Switch XBAR MPC5606S Microcontroller Reference Manual Rev 7 284 Freescale Semiconductor...
Страница 470: ...e200z0h Core MPC5606S Microcontroller Reference Manual Rev 7 468 Freescale Semiconductor...
Страница 524: ...Enhanced Direct Memory Access eDMA MPC5606S Microcontroller Reference Manual Rev 7 522 Freescale Semiconductor...
Страница 546: ...Error Correction Status Module ECSM MPC5606S Microcontroller Reference Manual Rev 7 544 Freescale Semiconductor...
Страница 669: ...Flash Memory MPC5606S Microcontroller Reference Manual Rev 7 Freescale Semiconductor 667...
Страница 670: ...Flash Memory MPC5606S Microcontroller Reference Manual Rev 7 668 Freescale Semiconductor...
Страница 716: ...FlexCAN MPC5606S Microcontroller Reference Manual Rev 7 714 Freescale Semiconductor...
Страница 882: ...LIN Controller LINFlex MPC5606S Microcontroller Reference Manual Rev 7 880 Freescale Semiconductor...
Страница 901: ...Memory Protection Unit MPU MPC5606S Microcontroller Reference Manual Rev 7 Freescale Semiconductor 899...
Страница 902: ...Memory Protection Unit MPU MPC5606S Microcontroller Reference Manual Rev 7 900 Freescale Semiconductor...
Страница 955: ...Mode Entry Module MC_ME MPC5606S Microcontroller Reference Manual Rev 7 Freescale Semiconductor 953...
Страница 956: ...Mode Entry Module MC_ME MPC5606S Microcontroller Reference Manual Rev 7 954 Freescale Semiconductor...
Страница 1072: ...Quad Serial Peripheral Interface QuadSPI MPC5606S Microcontroller Reference Manual Rev 7 1070 Freescale Semiconductor...
Страница 1096: ...Reset Generation Module MC_RGM MPC5606S Microcontroller Reference Manual Rev 7 1094 Freescale Semiconductor...
Страница 1106: ...Real Time Clock RTC API MPC5606S Microcontroller Reference Manual Rev 7 1104 Freescale Semiconductor...
Страница 1186: ...Stepper Stall Detect SSD MPC5606S Microcontroller Reference Manual Rev 7 1184 Freescale Semiconductor...
Страница 1213: ...System Integration Unit Lite SIUL MPC5606S Microcontroller Reference Manual Rev 7 Freescale Semiconductor 1211...
Страница 1214: ...System Integration Unit Lite SIUL MPC5606S Microcontroller Reference Manual Rev 7 1212 Freescale Semiconductor...
Страница 1238: ...Voltage Regulators and Power Supplies MPC5606S Microcontroller Reference Manual Rev 7 1236 Freescale Semiconductor...
Страница 1252: ...Wakeup Unit WKPU MPC5606S Microcontroller Reference Manual Rev 7 1250 Freescale Semiconductor...
Страница 1258: ...Registers Under Protection MPC5606S Microcontroller Reference Manual Rev 7 1256 Freescale Semiconductor...
Страница 1323: ...Register Map MPC5606S Microcontroller Reference Manual Rev 7 Freescale Semiconductor 1321...
Страница 1324: ...Register Map MPC5606S Microcontroller Reference Manual Rev 7 1322 Freescale Semiconductor...