MC68HC908GP32CFB Freescale Semiconductor, MC68HC908GP32CFB Datasheet - Page 206

• Manufacturer Part Number: MC68HC908GP32CFB
• Description: IC MCU 8MHZ 32K FLASH 44-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GP32CFB

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 33
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-QFP
• For Use With: M68EVB908GP32 - BOARD EVALUATION FOR HC908GP32
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Monitor ROM (MON)
Technical Data
204
NOTE:
The monitor ROM firmware echoes each received byte back to the PTA0
pin for error checking. An 11-bit delay at the end of each command
allows the host to send a break character to cancel the command. A
delay of two bit times occurs before each echo and before READ,
IREAD, or READSP data is returned. The data returned by a read
command appears after the echo of the last byte of the command.
Wait one bit time after each echo before sending the next byte.
ECHO
Notes:
3
4
1 = Echo delay, 2 bit times
2 = Data return delay, 2 bit times
3 = Cancel command delay, 11 bit times
4 = Wait 1 bit time before sending next byte.
ECHO
Notes:
•
•
•
WRITE
1 = Echo delay, 2 bit times
FROM
HOST
2 = Cancel command delay, 11 bit times
3 = Wait 1 bit time before sending next byte.
FROM
HOST
READ
IWRITE (indexed write)
READSP (read stack pointer)
RUN (run user program)
1
1
WRITE
READ
Monitor ROM (MON)
3
4
ADDRESS
ADDRESS
HIGH
HIGH
Figure 15-5. Read Transaction
Figure 15-6. Write Transaction
1
1
ADDRESS
ADDRESS
HIGH
HIGH
3
4
MC68HC908GP32
ADDRESS
ADDRESS
LOW
LOW
1
1
ADDRESS
ADDRESS
LOW
LOW
3
•
DATA
MC68HC08GP32
3, 2
1
DATA
DATA
MOTOROLA
RETURN
4
—
2, 3
Rev. 6