mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 33

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

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Number
Figure
For Short PORESET Assertion .........................................................................4-8
For Long PORESET Assertion .........................................................................4-8
MPC823 Block Diagram ..................................................................................1-7
MPC823 System Configuration .....................................................................1-12
MPC823 Signal Pinout ....................................................................................2-1
Reset Configuration Basic Scheme.................................................................4-7
Reset Configuration Sampling Scheme
Reset Configuration Sampling Scheme
Reset Configuration Sampling Timing Requirements......................................4-9
Clock Source and Distribution .........................................................................5-2
Crystal Oscillator ...........................................................................................5-10
Clock Module Diagram ..................................................................................5-11
SPLL Block Diagram .....................................................................................5-12
Clock Dividers................................................................................................5-15
MPC823 Clocks Timing Diagram ..................................................................5-16
Selecting the General System Clock .............................................................5-17
Divided System Clocks Timing Diagram .......................................................5-18
MPC823 Clocks For Division Factor 2...........................................................5-18
CLKOUT Divider............................................................................................5-19
BRGCLK Divider............................................................................................5-19
SYNCCLK Divider .........................................................................................5-20
LCDCLK Divider ............................................................................................5-21
LCD Clock Timing Diagram ...........................................................................5-21
MPC823 Power Rails and TEXP Status........................................................5-24
External Power Supply Scheme ....................................................................5-26
Register Lock Mechanism .............................................................................5-28
MPC823 Low-Power Mode Flowchart ...........................................................5-29
Block Diagram of the Core ..............................................................................6-3
Instruction Flow Conceptual Diagram..............................................................6-3
Basic Instruction Pipeline Timing Diagram ......................................................6-4
Sequencer Data Path ......................................................................................6-5
History Buffer Queue .......................................................................................6-9
Load/Store Unit Functional Block Diagram....................................................6-26
Freescale Semiconductor, Inc.
LIST OF ILLUSTRATIONS
For More Information On This Product,
MPC823 REFERENCE MANUAL
Go to: www.freescale.com
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