MC68HC908GR8CD Freescale Semiconductor, MC68HC908GR8CD Datasheet - Page 138

• Manufacturer Part Number: MC68HC908GR8CD
• Description: 8-bit Microcontrollers - MCU 8 Bit 8MHz
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC908GR8CD

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: HC08
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 8 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 384 B
• Operating Supply Voltage: 3 V to 5 V
• Package / Case: SOIC-28
• Mounting Style: SMD/SMT
• Data Rom Size: 64 KB
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 21
• Program Memory Type: Flash

Monitor ROM (MON)
A brief description of each monitor mode command is given in
138
Data Returned
Data Returned
Data Returned
Description
Description
Description
ECHO
Operand
Operand
Operand
ECHO
Opcode
Opcode
Opcode
WRITE
FROM
HOST
SENT TO
MONITOR
READ
WRITE
Table 15-5. WRITE (Write Memory) Command
READ
Table 15-6. IREAD (Indexed Read) Command
Table 15-4. READ (Read Memory) Command
MC68HC908GR8 • MC68HC908GR4 Data Sheet, Rev. 7
Read byte from memory
2-byte address in high-byte:low-byte order
Returns contents of specified address
$4A
Write byte to memory
2-byte address in high-byte:low-byte order; low byte followed by data byte
None
$49
Read next 2 bytes in memory from last address accessed
2-byte address in high byte:low byte order
Returns contents of next two addresses
$1A
ECHO
ADDRESS
IREAD
FROM
HOST
HIGH
ADDRESS
HIGH
ADDRESS
IREAD
HIGH
Command Sequence
Command Sequence
Command Sequence
ADDRESS
HIGH
ADDRESS
LOW
ADDRESS
LOW
ADDRESS
LOW
DATA
ADDRESS
LOW
Table 15-4
DATA
DATA
RETURN
DATA
through
DATA
Table
Freescale Semiconductor
RETURN
15-9.