Development Support
MPC561/MPC563 Reference Manual, Rev. 1.2
Freescale Semiconductor
23-21
Figure 23-5. Functional Diagram of MPC561/MPC563 Debug Mode Support
The development port provides a full duplex serial interface for communications between the internal
development support logic of the CPU and an external development tool. The development port can
operate in two working modes: the trap enable mode and the debug mode.
The trap enable mode is used in order to shift into the CPU internal development support logic the
following control signals:
1. Instruction trap enable bits, used for on the fly programming of the instruction breakpoint
2. Load/store trap enable bits, used for on the fly programming of the load/store breakpoint
3. Non-maskable breakpoint, used to assert the non-maskable external breakpoint
4. Maskable breakpoint, used to assert the maskable external breakpoint
5. VSYNC, used to assert and negate VSYNC
In debug mode the development port controls also the debug mode features of the CPU. For more
information
Section 23.4, “Development Port
23.3.1
Debug Mode Support
The debug mode of the CPU provides the development system with the following basic functions:
32
Development Port
Development Port
32
35
ECR
DER
CPU Core
DPIR
DPDR
9
TECR
Control Logic
Shift Register
DSDO
VFLS,
FRZ
EXT
BUS
BKPT, TE,
VSYNC
DSDI
DSCK
Development
Support
Logic
Port
Internal
Bus
SIU/
EBI
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...