MC68HC908MR8CP Freescale Semiconductor, MC68HC908MR8CP Datasheet - Page 336

• Manufacturer Part Number: MC68HC908MR8CP
• Description: IC MCU 8K FLASH 8MHZ PWM 28-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908MR8CP

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 12
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 4x10b
• 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: -

Break (BRK)
20.6.3 SIM Break Status Register
Technical Data
336
The SIM break status register (SBSR) contains a flag to indicate that a
break caused an exit from wait mode. The flag is useful in applications
requiring a return to wait mode after exiting from a break interrupt.
Reset:
BW — Break Wait Bit
BW can be read within the break interrupt routine. The user can modify
the return address on the stack by subtracting 1 from it. The example
code shown in
break interrupt routine. Execute this code at the end of the break
interrupt routine.
dress:
Read:
Write:
Ad-
This read/write bit is set when a break interrupt causes an exit from
wait mode. Clear BW by writing a logic 0 to it. Reset clears BW.
Note: Writing a logic 0
1 = Break interrupt during wait mode
0 = No break interrupt during wait mode
$FE00
Bit 7
R
0
0
Figure 20-6. SIM Break Status Register (SBSR)
clears BW.
Figure 20-7
R
6
0
0
Break (BRK)
R
R
5
0
0
works if the H register was stacked in the
= Reserved
R
4
1
1
R
3
0
0
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
R
2
0
0
Note
BW
1
0
Bit 0
R
0
0