MC68HC908GR8CDW Freescale Semiconductor, MC68HC908GR8CDW Datasheet - Page 93

• Manufacturer Part Number: MC68HC908GR8CDW
• Description: IC MCU 8K FLASH 8MHZ 28-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GR8CDW

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 17
• Program Memory Size: 7.5KB (7.5K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

6.4.1 Flag Protection During Break Interrupts
6.4.2 CPU During Break Interrupts
MC68HC908GR8 — Rev 4.0
MOTOROLA
Addr.
$FE0A
$FE0B
$FE00
$FE03
$FE09
Note: Writing a logic 0 clears BW.
SIM Break Status Register
Break Status and Control
Break Address Register
Break Address Register
SIM Break Flag Control
Register Name
Register (BRKSCR)
Register (SBFCR)
High (BRKH)
Low (BRKL)
(SBSR)
The BCFE bit in the SIM break flag control register (SBFCR) enables
software to clear status bits during the break state.
The CPU starts a break interrupt by:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Freescale Semiconductor, Inc.
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For More Information On This Product,
Figure 6-2. I/O Register Summary
Loading the instruction register with the SWI instruction
Loading the program counter with $FFFC and $FFFD ($FEFC and
$FEFD in monitor mode)
BCFE
BRKE
Bit 7
Bit 15
Bit 7
R
0
0
0
0
0
0
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Break Module (BRK)
BRKA
= Unimplemented
14
6
R
R
0
0
0
6
0
0
13
5
R
R
0
0
0
5
0
0
0
12
4
R
R
R
1
1
0
4
0
0
0
11
3
R
R
0
0
0
3
0
0
0
= Reserved
10
2
R
R
0
0
0
2
0
0
0
Functional Description
Break Module (BRK)
NOTE
BW
1
R
0
9
0
1
0
0
0
Technical Data
Bit 0
Bit 8
Bit 0
R
R
0
0
0
0
0
0
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