Datasheet

Monitor ROM (MON)
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
158 Freescale Semiconductor
Table 14-5. 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
Table 14-6. IWRITE (Indexed Write) Command
Description Write to last address accessed + 1
Operand Specifies single data byte
Data Returned None
Opcode $19
Command Sequence
Table 14-7. READSP (Read Stack Pointer) Command
Description Reads stack pointer
Operand None
Data Returned Returns stack pointer in high byte:low byte order
Opcode $0C
Command Sequence
DATAIREADIREAD DATA
ECHO
SENT TO
MONITOR
RESULT
DATAIWRITEIWRITE DATA
ECHO
SENT TO
MONITOR
SP HIGHREADSPREADSP SP LOW
ECHO
SENT TO
MONITOR
RESULT