Datasheet

Monitor ROM (MON)
Functional Description
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3 Technical Data
Freescale Semiconductor Monitor ROM (MON) 173
NOTE: A sequence of IREAD or IWRITE commands can sequentially access a
block of memory over the full 64-Kbyte memory map.
Table 10-6. IREAD (Indexed Read) Command
Description Read next 2 bytes in memory from last address accessed
Operand Specifies 2-byte address in high byte:low byte order
Data Returned Returns contents of next two addresses
Opcode $1A
Command Sequence
DATAIREADIREAD DATA
ECHO
SENT TO
MONITOR
RESULT
Table 10-7. IWRITE (Indexed Write) Command
Description Write to last address accessed + 1
Operand Specifies single data byte
Data Returned None
Opcode $19
Command Sequence
DATAIWRITEIWRITE DATA
ECHO
SENT TO
MONITOR