MC68HC908GR8CDW Freescale Semiconductor, MC68HC908GR8CDW Datasheet - Page 63
MC68HC908GR8CDW
Manufacturer Part Number
MC68HC908GR8CDW
Description
IC MCU 8K FLASH 8MHZ 28-SOIC
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC68HC908GR4CFAE.pdf
(408 pages)
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
-
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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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