
MOTOROLA
Chapter 24. READI Module
24-63
Read/Write Access
Read/write access features are enabled by setting the appropriate fields in the RWA register.
The functional flow for read/write access to memory-mapped locations and MPC500
Figure 24-55. Target Ready Message
Figure 24-56. Read Register Message
Figure 24-57. Write Register Message
Figure 24-58. Read/Write Response Message
TCODE (16)
Max Length = 6 bits
[6 bits]
Min Length = 6 bits
TCODE (17)
Opcode
[8 bits]
Max Length = 14 bits
[6 bits]
Min Length = 14 bits
TCODE (18)
Opcode
[8 bits]
Max Length = 94 bits
[8-80 bits]
Register Value
[6 bits]
Min Length = 22 bits
TCODE (19)
Return Value
[8-80 bits]
Max Length = 86 bits
[6 bits]
Min Length = 14 bits