Functional Description
Table 8-6. IREAD (Indexed Read) Command
Description Read next 2 bytes in memory from last address accessed
Operand 2-byte address in high byte:low byte order
Data
Returned
Returns contents of next two addresses
Opcode $1A
Command Sequence
FROM
HOST
IREAD
IREAD
DATA
DATA
ECHO
RETURN
Table 8-7. IWRITE (Indexed Write) Command
Description Write to last address accessed + 1
Operand Single data byte
Data
None
Returned
Opcode $19
Command Sequence
FROM
HOST
DATA
DATA
IWRITE
IWRITE
ECHO
A sequence of IREAD or IWRITE commands can access a block of memory sequentially over the full
64-Kbyte memory map.
MC68HC908AP Family Data Sheet, Rev. 4
Freescale Semiconductor
123
FREESCALE [ Freescale ]
