MC68HC908LB8CPE Freescale Semiconductor, MC68HC908LB8CPE Datasheet - Page 204

• 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: -

Development Support
19.2.1.1 Flag Protection During Break Interrupts
The system integration module (SIM) controls whether or not module status bits can be cleared during
the break state. The BCFE bit in the break flag control register (BFCR) enables software to clear status
bits during the break state. See
for each module.
204
1. Writing a 0 clears SBSW.
$FE00
$FE02
$FE03
$FE09
$FE0A
$FE0B
Addr.
Break Address High Register
Break Address Low Register
Break Flag Control Register
Break Status and Control
Break Auxiliary Register
Register Name
Break Status Register
Register (BRKSCR)
ADDRESS BUS[15:0]
See page 207.
See page 206.
See page 207.
See page 206.
See page 206.
See page 205.
(BRKAR)
(BRKH)
(BFCR)
(BRKL)
(BSR)
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Write:
Figure 19-1. Break Module Block Diagram
Figure 19-2. Break I/O Register Summary
ADDRESS BUS[15:8]
ADDRESS BUS[7:0]
17.7.3 Break Flag Control Register
BRKE
BCFE
Bit15
Bit 7
Bit 7
Bit 7
R
0
0
0
0
0
MC68HC908LB8 Data Sheet, Rev. 1
BREAK ADDRESS REGISTER HIGH
BREAK ADDRESS REGISTER LOW
8-BIT COMPARATOR
8-BIT COMPARATOR
= Unimplemented
BRKA
Bit14
Bit 6
Bit 6
R
R
6
0
0
0
0
Bit13
Bit 5
Bit 5
R
R
5
0
0
0
0
0
Bit12
Bit 4
Bit 4
R
R
R
4
0
0
0
0
0
and the Break Interrupts subsection
= Reserved
CONTROL
Bit11
Bit 3
Bit 3
R
R
3
0
0
0
0
0
Bit10
Bit 2
Bit 2
R
R
2
0
0
0
0
0
Freescale Semiconductor
BKPT
(TO SIM)
Note
SBSW
Bit 1
Bit 1
Bit9
R
1
0
0
0
0
0
0
(1)
Bit 0
Bit 0
Bit 0
Bit8
R
R
0
0
0
0
0