MC68HC908GP32CP Freescale Semiconductor, MC68HC908GP32CP Datasheet - Page 286

• Manufacturer Part Number: MC68HC908GP32CP
• Description: IC MCU 8MHZ 32K FLASH 40-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GP32CP

• 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: 40-DIP (0.600", 15.24mm)
• For Use With: M68EVB908GP32 - BOARD EVALUATION FOR HC908GP32
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

System Integration Module (SIM)
19.4.2 Active Resets from Internal Sources
Technical Data
284
NOTE:
All internal reset sources actively pull the RST pin low for 32 CGMXCLK
cycles to allow resetting of external peripherals. The internal reset signal
IRST continues to be asserted for an additional 32 cycles.
19-5. An internal reset can be caused by an illegal address, illegal
opcode, COP timeout, LVI, or POR.
For LVI or POR resets, the SIM cycles through 4096 + 32 CGMXCLK
cycles during which the SIM forces the RST pin low. The internal reset
signal then follows the sequence from the falling edge of RST shown in
Figure
The COP reset is asynchronous to the bus clock.
The active reset feature allows the part to issue a reset to peripherals
and other chips within a system built around the MCU.
CGMXCLK
IRST
RST
IAB
19-5.
System Integration Module (SIM)
ILLEGAL ADDRESS RST
Figure 19-6. Sources of Internal Reset
ILLEGAL OPCODE RST
RST PULLED LOW BY MCU
Figure 19-5. Internal Reset Timing
COPRST
32 CYCLES
POR
LVI
MC68HC908GP32
(See Figure
INTERNAL RESET
32 CYCLES
•
MC68HC08GP32
19-6.)
VECTOR HIGH
See Figure
MOTOROLA
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Rev. 6