MC68HC908MR8CP Freescale Semiconductor, MC68HC908MR8CP Datasheet - Page 294

• Manufacturer Part Number: MC68HC908MR8CP
• Description: IC MCU 8K FLASH 8MHZ PWM 28-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908MR8CP

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 12
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Computer Operating Properly (COP)
15.4.4 Internal Reset
15.4.5 Reset Vector Fetch
15.4.6 COP Disable
15.5 COP Control Register
15.6 Interrupts
Technical Data
294
An internal reset clears the SIM counter and the COP counter.
A reset vector fetch occurs when the vector address appears on the data
bus. A reset vector fetch clears the SIM counter.
The COP disable (COPD) signal reflects the state of the COP disable bit
(COPD) in the configuration register (CONFIG). See
The COP control register (COPCTL) 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.
Reset:
The COP does not generate CPU interrupt requests.
dress:
Read:
Write:
Ad-
$FFFF
Bit 7
Computer Operating Properly (COP)
Figure 15-3. COP Control Register (COPCTL)
6
5
Low byte of reset vector
Unaffected by reset
Clear COP counter
4
3
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
2
5.4 CONFIG
1
Bit 0
Bits.