MC68HC908AP8CB Freescale Semiconductor, MC68HC908AP8CB Datasheet - Page 296

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MC68HC908AP8CB

Manufacturer Part Number
MC68HC908AP8CB
Description
IC MCU 8K FLASH 8MHZ 42SDIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet

Specifications of MC68HC908AP8CB

Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, IRSCI, SCI, SPI
Peripherals
LED, LVD, POR, PWM
Number Of I /o
32
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
42-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Break Module (BRK)
21.5.2 Break Address Registers
The break address registers (BRKH and BRKL) contain the high and low bytes of the desired breakpoint
address. Reset clears the break address registers.
21.5.3 SIM Break Status Register
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.
SBSW — Break Wait Bit
SBSW can be read within the break interrupt routine. The user can modify the return address on the stack
by subtracting 1 from it. The following code is an example.
294
This status bit is set when a break interrupt causes an exit from wait mode or stop mode. Clear SBSW
by writing a logic 0 to it. Reset clears SBSW.
1 = Stop mode or wait mode was exited by break interrupt
0 = Stop mode or wait mode was not exited by break interrupt
Note: Writing a logic 0 clears SBSW.
Address:
Address:
Address:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Write:
Write:
Write:
$FE0C
$FE0D
$FE00
Bit 15
Bit 7
Bit 7
Bit 7
Bit 7
Figure 21-6. SIM Break Status Register (SBSR)
R
0
0
Figure 21-4. Break Address Register High (BRKH)
Figure 21-5. Break Address Register Low (BRKL)
14
R
6
0
6
6
0
6
MC68HC908AP Family Data Sheet, Rev. 4
13
R
R
5
0
5
5
0
5
= Reserved
12
R
4
0
4
4
0
4
11
R
3
0
3
3
0
3
10
R
2
0
2
2
0
2
SBSW
Note
1
9
0
1
1
0
1
0
Freescale Semiconductor
Bit 0
Bit 8
Bit 0
Bit 0
Bit 0
R
0
0

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