MC68HC908GR8CDW Freescale Semiconductor, MC68HC908GR8CDW Datasheet - Page 136

• Manufacturer Part Number: MC68HC908GR8CDW
• Description: IC MCU 8K FLASH 8MHZ 28-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GR8CDW

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 17
• Program Memory Size: 7.5KB (7.5K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Computer Operating Properly (COP)
9.4.6 Reset Vector Fetch
9.4.7 COPD (COP Disable)
9.4.8 COPRS (COP Rate Select)
9.5 COP Control Register
9.6 Interrupts
Technical Data
136
Address: $FFFF
A reset vector fetch occurs when the vector address appears on the data
bus. A reset vector fetch clears the COP prescaler.
The COPD signal reflects the state of the COP disable bit (COPD) in the
configuration register. See
The COPRS signal reflects the state of the COP rate select bit (COPRS)
in the configuration register. See
The COP control register is located at address $FFFF and overlaps the
reset vector. Writing any value to $FFFF clears the COP counter and
starts a new timeout period. Reading location $FFFF returns the low
byte of the reset vector.
The COP does not generate CPU interrupt requests.
Reset:
Read:
Write:
Freescale Semiconductor, Inc.
For More Information On This Product,
Bit 7
Computer Operating Properly (COP)
Figure 9-2. COP Control Register (COPCTL)
Go to: www.freescale.com
6
5
Configuration Register
Low byte of reset vector
Unaffected by reset
Clear COP counter
Configuration Register
4
3
MC68HC908GR8 — Rev 4.0
(CONFIG).
2
(CONFIG).
1
MOTOROLA
Bit 0