MC68HC908LB8CPE Freescale Semiconductor, MC68HC908LB8CPE Datasheet - Page 159

• Manufacturer Part Number: MC68HC908LB8CPE
• Description: IC MCU 8K FLASH 8MHZ 20DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908LB8CPE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: LVR, POR, PWM
• Number Of I /o: 18
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 7x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -

15.8.7 Fault Control Register
The fault control register (FCR) controls the fault-protection circuitry.
FINT — Fault Interrupt Enable Bit
FMODE — Fault Mode Selection for Fault Pin Bit (automatic versus manual mode)
15.8.8 Fault Status Register
The fault status register (FSR) is a read-only register that indicates the current fault status.
FPIN — State of Fault Pin Bit
FFLAG — Fault Event Flag
Freescale Semiconductor
This read/write bit allows the CPU interrupt caused by faults on the fault pin to be enabled. The fault
protection circuitry is independent of this bit and will always be active. If a fault is detected, the PWM
pins will still be disabled according to the disable mapping register.
This read/write bit allows the user to select between automatic and manual mode faults. For further
descriptions of each mode, see
This read-only bit allows the user to read the current state of the fault pin.
The FFLAG event bit is set immediately when a rising edge is seen on the fault pin. To clear the FFLAG
bit, the user must write a 1 to the FTACK bit in the fault acknowledge register.
1 = Fault pin will cause CPU interrupts
0 = Fault pin will not cause CPU interrupts
1 = Automatic mode
0 = Manual mode
1 = Fault pin is at logic 1
0 = Fault pin is at logic 0
1 = A fault has occurred on the fault pin
0 = No new fault on the fault pin
Address: $0042
Address:
Reset:
Reset:
Read:
Read:
Write:
Write:
$0043
Bit 7
Bit 7
0
0
0
0
Figure 15-23. Fault Control Register (FCR)
Figure 15-24. Fault Status Register (FSR)
= Unimplemented
= Unimplemented
6
0
0
6
0
0
15.5 Fault
MC68HC908LB8 Data Sheet, Rev. 1
5
0
0
5
0
0
Protection.
U = Unaffected
4
0
0
4
0
0
3
0
0
3
0
0
2
0
0
2
0
0
FPIN
FINT
U
1
0
1
FMODE
FFLAG
Control Logic Block
Bit 0
Bit 0
0
0
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