MC68HC908GR4CFA Freescale Semiconductor, MC68HC908GR4CFA Datasheet - Page 63
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MC68HC908GR4CFA
Manufacturer Part Number
MC68HC908GR4CFA
Description
IC MCU 4K FLASH 8.2MHZ 32-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC68HC908GR4CFAE.pdf
(408 pages)
Specifications of MC68HC908GR4CFA
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
21
Program Memory Size
4KB (4K 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
32-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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4.3.3.2 COP Reset
MC68HC908GR8 — Rev 4.0
MOTOROLA
PORRST
1. PORRST is an internally generated power-on reset pulse.
CGMXCLK
INTERNAL
CGMOUT
RST PIN
RESET
OSC1
(1)
A power-on reset:
A COP reset is an internal reset caused by an overflow of the COP
counter. A COP reset sets the COP bit in the system integration module
(SIM) reset status register.
To clear the COP counter and prevent a COP reset, write any value to
the COP control register at location $FFFF.
Freescale Semiconductor, Inc.
•
•
•
•
•
Figure 4-2. Power-On Reset Recovery
For More Information On This Product,
Holds the clocks to the CPU and modules inactive for an oscillator
stabilization delay of 4096 CGMXCLK cycles
Drives the RST pin low during the oscillator stabilization delay
Releases the RST pin 32 CGMXCLK cycles after the oscillator
stabilization delay
Releases the CPU to begin the reset vector sequence 64
CGMXCLK cycles after the oscillator stabilization delay
Sets the POR bit in the SIM reset status register and clears all
other bits in the register
CYCLES
4096
Go to: www.freescale.com
Resets and Interrupts
CYCLES
32
CYCLES
32
Resets and Interrupts
Technical Data
Resets
63
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