MPC564EVB Freescale Semiconductor, MPC564EVB Datasheet - Page 1027

• Manufacturer Part Number: MPC564EVB
• Description: KIT EVAL FOR MPC561/562/563/564
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC564EVB

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC56x
• Data Bus Width: 32 bit
• Interface Type: RS-232, Ethernet
• For Use With/related Products: MPC561, 562, 563, 564
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

24.10 Read/Write Access
The read/write access feature allows access to internal memory-mapped space via the auxiliary port.
Read/write mechanism supports single and block, reads and writes.
24.10.1 Functional Description
The READI module is capable of bus mastership on the L-bus and for setting up and reading data and
status.
All accesses are setup and initiated to the read/write access register (RWA) and upload/download
information register (UDI) via the four auxiliary access public messages: device ready for
upload/download, upload request (tool requests information), download request (tool provides
information), upload/download information (device/tool provides information).
Read/write access features are enabled by setting the appropriate fields in the RWA register. For details on
field configuration, refer to
The functional flow for read/write access to memory-mapped locations and MPC500 registers is depicted
in
Freescale Semiconductor
Figure
TCODE = 8
Error Code = 0b00111 (Program/Data/Ownership trace overrun)
MCKO
MSEO
MDO[7:0]
24-59.
Figure 24-54. Error Message (Program/Data/Ownership Trace Overrun)
TCODE (17)
[6 bits]
Section 24.6.1.7, “Read/Write Access Register
MPC561/MPC563 Reference Manual, Rev. 1.2
Figure 24-56. Read Register Message
Figure 24-55. Target Ready Message
Max Length = 14 bits
Min Length = 14 bits
Max Length = 6 bits
Min Length = 6 bits
TCODE (16)
11001000
[6 bits]
Opcode
[8 bits]
00000001
Don’t care data
(idle clock)
(RWA).”
00000000
READI Module
24-59