MC68HC908GP32CB Freescale Semiconductor, MC68HC908GP32CB Datasheet - Page 87
MC68HC908GP32CB
Manufacturer Part Number
MC68HC908GP32CB
Description
IC MCU 32K FLASH 8MHZ 42-SDIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908GP32CFBE.pdf
(266 pages)
Specifications of MC68HC908GP32CB
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
42-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
-
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7.3.7 COPD (COP Disable)
The COPD signal reflects the state of the COP disable bit (COPD) in the configuration register. (See
Chapter 6 Configuration Register
7.3.8 COPRS (COP Rate Select)
The COPRS signal reflects the state of the COP rate select bit (COPRS) in the configuration register.
(See
7.4 COP Control Register
The COP control register 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.
7.5 Interrupts
The COP does not generate CPU interrupt requests.
7.6 Monitor Mode
When monitor mode is entered with V
on the IRQ pin or the RST pin. When monitor mode is entered by having blank reset vectors and not
having V
7.7 Low-Power Modes
The WAIT and STOP instructions put the MCU in low power-consumption standby modes.
7.7.1 Wait Mode
The COP remains active during wait mode. To prevent a COP reset during wait mode, periodically clear
the COP counter in a CPU interrupt routine.
7.7.2 Stop Mode
Stop mode turns off the CGMXCLK input to the COP and clears the COP prescaler. Service the COP
immediately before entering or after exiting stop mode to ensure a full COP timeout period after entering
or exiting stop mode.
Freescale Semiconductor
Chapter 6 Configuration Register
TST
on the IRQ pin, the COP is automatically disabled until a POR occurs.
Address: $FFFF
Reset:
Read:
Write:
Bit 7
Figure 7-2. COP Control Register (COPCTL)
(CONFIG).)
6
MC68HC908GP32 Data Sheet, Rev. 10
TST
(CONFIG).)
on the IRQ pin, the COP is disabled as long as V
5
Low byte of reset vector
Unaffected by reset
Clear COP counter
4
3
2
1
COP Control Register
Bit 0
TST
remains
87
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