MC68HC908JL8CP Freescale Semiconductor, MC68HC908JL8CP Datasheet - Page 175

• Manufacturer Part Number: MC68HC908JL8CP
• Description: IC MCU 8K FLASH 8MHZ 28-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908JL8CP

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 23
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 13x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

14.3.7 COPRS (COP Rate Select)
The COPRS signal reflects the state of the COP rate select bit (COPRS) in the configuration register 1.
COPRS — COP Rate Select Bit
COPD — COP Disable Bit
14.4 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.
14.5 Interrupts
The COP does not generate CPU interrupt requests.
14.6 Monitor Mode
The COP is disabled in monitor mode when V
14.7 Low-Power Modes
The WAIT and STOP instructions put the MCU in low-power consumption standby modes.
Freescale Semiconductor
COPRS selects the COP timeout period. Reset clears COPRS.
COPD disables the COP module.
1 = COP timeout period is (2
0 = COP timeout period is (2
1 = COP module disabled
0 = COP module enabled
Address:
Address:
Reset:
Read:
Write:
Reset:
Read:
Write:
MC68HC908JL8/JK8 • MC68HC08JL8/JK8 • MC68HC908KL8 Data Sheet, Rev. 3.1
COPRS
$001F
$FFFF
Bit 7
Bit 7
R
0
Figure 14-2. Configuration Register 1 (CONFIG1)
Figure 14-3. COP Control Register (COPCTL)
= Reserved
R
6
0
6
13
18
– 2
– 2
4
4
) ICLK cycles
) ICLK cycles
R
5
0
5
TST
Low byte of reset vector
Unaffected by reset
is present on the IRQ pin or on the RST pin.
Clear COP counter
LVID
4
0
4
R
3
3
0
SSREC
2
2
0
STOP
1
1
0
COP Control Register
COPD
Bit 0
Bit 0
0
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