Nexus
MPC5565 Microcontroller Reference Manual, Rev. 1.0
24-4
Freescale Semiconductor
•
eTPU development support features (NSEDI)
— IEEE-ISTO 5001-2002 standard Class 3 compliant for the eTPU engine.
— Data trace via data write messaging and data read messaging. This allows the development tool
to trace reads and writes to selected shared parameter RAM (SPRAM) address ranges. Four
data trace windows are shared by the two eTPU engines.
— Ownership trace via ownership trace messaging (OTM). OTM facilitates ownership trace by
providing visibility of which channel is being serviced. An ownership trace message is
transmitted to indicate when a new channel service request is scheduled, allowing the
development tools to trace task flow. A special OTM is sent when the engine enters in idle state,
meaning that all requests were serviced and no new requests are yet scheduled.
— Program trace via branch trace messaging. BTM displays program flow discontinuities (start,
jumps, return, etc.), allowing the development tool to interpolate what transpires between the
discontinuities. Thus static code can be traced. The branch trace messaging method uses the
branch/predicate method to reduce the number of generated messages.
— Watchpoint messaging via the auxiliary port. WPM provides visibility of the occurrence of the
eTPU’s watchpoints and breakpoints.
— Nexus based breakpoint/watchpoint configuration and single step support.
•
Run-time access to the on-chip memory map via the Nexus read/write access protocol. This feature
supports accesses for run-time internal visibility, calibration variable acquisition, calibration
constant tuning, and external rapid prototyping for powertrain automotive development systems.
•
All features are independently configurable and controllable via the IEEE
®
1149.1 I/O port.
•
The NDI block reset is controlled with JCOMP, power-on reset, and the TAP state machine. These
sources are independent of system reset.
•
System clock locked status indication via MDO0 following power-on reset.
24.1.3
Modes of Operation
The NDI block is in reset when the TAP controller state machine is in the TEST-LOGIC-RESET state. The
TEST-LOGIC-RESET state is entered on the assertion of the power-on reset signal, negation of JCOMP,
or through state machine transitions controlled by TMS. Assertion of JCOMP allows the NDI to move out
of the reset state, and is a prerequisite to grant Nexus clients control of the TAP. Ownership of the TAP is
achieved by loading the appropriate enable instruction for the desired Nexus client in the JTAGC controller
(JTAGC) block when JCOMP is asserted.
Following negation of power-on reset, the NPC remains in reset until the system clock achieves lock. In
PLL bypass mode, the NDI can transition out of the reset state immediately following negation of
power-on reset. Refer to
Section 24.4.5, “System Clock Locked Indication
” for more details.
Содержание MPC5565
Страница 18: ...MPC5565 Microcontroller Reference Manual Devices Supported MPC5565 MPC5565 RM Rev 1 0 09 2007...
Страница 34: ...MPC5565 Reference Manual Rev 1 0 Freescale Semiconductor 15...
Страница 35: ...MPC5565 Reference Manual Rev 1 0 16 Freescale Semiconductor...
Страница 325: ...Error Correction Status Module ECSM MPC5565 Microcontroller Reference Manual Rev 1 0 8 16 Freescale Semiconductor...
Страница 515: ...External Bus Interface EBI MPC5565 Microcontroller Reference Manual Rev 1 0 12 70 Freescale Semiconductor...
Страница 553: ...Flash Memory MPC5565 Microcontroller Reference Manual Rev 1 0 13 38 Freescale Semiconductor...
Страница 559: ...SRAM MPC5565 Microcontroller Reference Manual Rev 1 0 14 6 Freescale Semiconductor...
Страница 577: ...Boot Assist Module BAM MPC5565 Microcontroller Reference Manual Rev 1 0 15 18 Freescale Semiconductor...
Страница 895: ...Deserial Serial Peripheral Interface DSPI MPC5565 Microcontroller Reference Manual Rev 1 0 19 72 Freescale Semiconductor...
Страница 973: ...Preface MPC5565 Microcontroller Reference Manual Rev 1 0 21 36 Freescale Semiconductor...
Страница 1145: ...MPC5565 Register Map MPC5565 Microcontroller Reference Manual Rev 1 0 A 60 Freescale Semiconductor...
Страница 1153: ...Calibration MPC5565 Microcontroller Reference Manual Rev 1 0 B 8 Freescale Semiconductor...