READI Module
MPC561/MPC563 Reference Manual, Rev. 1.2
24-86
Freescale Semiconductor
Figure 24-89. DSDO Data Message (CPU Data Out)
24.15 Power Management
This section details the power management features of the READI module.
The READI module is a development interface, and is not expected to function under normal
(non-development) conditions. Therefore power management is required to reduce and minimize power
consumption during normal operation of the part.
24.15.1 Functional Description
The following are the candidates for power management:
24.15.2 Low Power Modes
When the MCU is in sleep, deep-sleep, or low power-down mode, all internal clocks on the MCU are shut
down, including the MCKO. The MSEO signal will be held negated.
Low power mode entry for the MCU will be held off until the READI module has transmitted all existing
messages (in the queues and transmit buffers). During this time, input messages from the development tool
are ignored.
Upon restoration of clocks in normal mode, program and data traces will be synchronized, if enabled.
Table 24-35. Power Management Mechanism Overview
Feature
Power Saving Mechanism
Disabled Mode
If EVTI is negated at negation of RSTI, the READI module will be
disabled. No trace output will be provided, and output auxiliary port
will be three-stated.
Sleep, Deep-Sleep and
Low Power-Down Mode
All outputs will be held static.
READI Reset (RSTI)
Output auxiliary signals will be three-stated.
MCKO
MSEO
MDO[7:0]
11111110
00000001 10101010 01011110
00000001 00000000
TCODE = 57 (0x39)
Header = (Start=0, Mode=0, Control=0)
Data = FF00AAF5 (CPU Data Out)
Don’t care data
(idle clock)
00111001
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...
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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...