MC68HC908GR8CD Freescale Semiconductor, MC68HC908GR8CD Datasheet - Page 91

• Manufacturer Part Number: MC68HC908GR8CD
• Description: 8-bit Microcontrollers - MCU 8 Bit 8MHz
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC908GR8CD

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: HC08
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 8 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 384 B
• Operating Supply Voltage: 3 V to 5 V
• Package / Case: SOIC-28
• Mounting Style: SMD/SMT
• Data Rom Size: 64 KB
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 21
• Program Memory Type: Flash

STOP — STOP Instruction Enable Bit
COPD — COP Disable Bit
Freescale Semiconductor
SSREC enables the CPU to exit stop mode with a delay of 32 CGMXCLK cycles instead of a
4096-CGMXCLK cycle delay.
STOP enables the STOP instruction.
COPD disables the COP module. See
1 = Stop mode recovery after 32 CGMXCLK cycles
0 = Stop mode recovery after 4096 CGMXCLKC cycles
1 = STOP instruction enabled
0 = STOP instruction treated as illegal opcode
1 = COP module disabled
0 = COP module enabled
Exiting stop mode by pulling reset will result in the long stop recovery.
If using an external crystal oscillator, do not set the SSREC bit.
When the LVISTOP is enabled, the system stabilization time for power on
reset and long stop recovery (both 4096 CGMXCLK cycles) gives a delay
longer than the enable time for the LVI. There is no period where the MCU
is not protected from a low power condition. However, when using the short
stop recovery configuration option, the 32-CGMXCLK delay is less than the
LVI’s turn-on time and there exists a period in startup where the LVI is not
protecting the MCU.
MC68HC908GR8 • MC68HC908GR4 Data Sheet, Rev. 7
Chapter 9 Computer Operating Properly (COP)
NOTE
Functional Description
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