mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 35

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

13-11. Burst-Read Cycle–32-Bit Port Size–Zero Wait State ..................................13-18
13-12. Burst-Read Cycle–32-Bit Port Size–One Wait State ...................................13-19
13-13. Burst-Read Cycle–32-Bit Port Size–Wait States Between Beats................13-20
13-14. Basic Flow Diagram of a Burst Write Cycle.................................................13-21
13-15. Burst-Read Cycle–16-Bit Port Size–One Wait
13-16. Burst-Write Cycle–32-Bit Port Size–Zero Wait States.................................13-23
13-17. Burst-Inhibit Cycle–32-Bit Port Size ............................................................13-24
13-18. Internal Operand Representation ................................................................13-25
13-19. Interface To Different Port Size Devices .....................................................13-26
13-20. Bus Arbitration Flowchart ............................................................................13-28
13-21. Basic Bus Busy Connection ........................................................................13-29
13-22. Bus Arbitration Timing Diagram...................................................................13-30
13-23. Internal Bus Arbitration State Machine ........................................................13-31
13-24. Termination Signals Protocol Basic Connection..........................................13-37
13-25. Termination Signals Protocol Timing Diagram ............................................13-37
13-26. Reservation On Local Bus...........................................................................13-39
13-27. Reservation On Multilevel Bus Hierarchy ....................................................13-40
13-28. RETRY Transfer Timing–Internal Arbiter.....................................................13-42
13-29. RETRY Transfer Timing–External Arbiter ...................................................13-43
13-30. Retry On Burst Cycle...................................................................................13-44
14-1.
15-1.
15-2.
15-3.
15-4.
15-5.
15-6.
15-7.
15-8.
15-9.
15-10. MPC823 GPCM–Relaxed Timing–Write Access
15-11. MPC823 GPCM–Relaxed Timing–Write Access
15-12. MPC823 GPCM–Relaxed Timing–Write Access
15-13. GPCM Read Followed By Write (EHTR = 0)...............................................15-35
Number
Figure
State Between Beats ....................................................................................13-22
(ACS = 00, CSNT = 1, and TRLX = 0) ..........................................................15-30
(ACS = 10 or 11, SCY = 1, and TRLX = 1) ...................................................15-32
(ACS = 10 or 11, SCY = 0, CSNT = 0, and TRLX = 1) .................................15-33
(ACS = 10 or 11, SCY = 0, CSNT = 1, and TRLX = 1) .................................15-33
(ACS = 00, SCY = 0, CSNT = 1, and TRLX = 1)...........................................15-34
General MPC823 System Diagram ...............................................................14-2
Memory Controller Block Diagram (Single UPM) ..........................................15-3
Memory Controller Machine Selection...........................................................15-4
Simple System Configuration ........................................................................15-5
Basic Memory Controller Operation ..............................................................15-7
GPCM Memory Device Interface.................................................................15-29
GPCM Memory Device Basic Timing
GPCM Peripheral Device Interface .............................................................15-31
GPCM Peripheral Device Basic Timing (ACS = 10 or 11 and TRLX = 0) ...15-31
MPC823 GPCM–Relaxed Timing–Read Access
LIST OF ILLUSTRATIONS (Continued)
Freescale Semiconductor, Inc.
For More Information On This Product,
MPC823 REFERENCE MANUAL
Go to: www.freescale.com
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