MC68HC908JL8CSPE Freescale Semiconductor, MC68HC908JL8CSPE Datasheet - Page 182

• Manufacturer Part Number: MC68HC908JL8CSPE
• Description: IC MCU 8K FLASH 8MHZ 32-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908JL8CSPE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 26
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 13x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-SDIP (0.400", 10.16mm)
• Controller Family/series: HC08
• No. Of I/o's: 26
• Ram Memory Size: 256Byte
• Cpu Speed: 8MHz
• No. Of Timers: 2
• Embedded Interface Type: I2C, SCI, SPI
• Rohs Compliant: Yes
• Processor Series: HC08JL
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SCI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 26
• Number Of Timers: 4
• Operating Supply Voltage: 0 V to 5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• Development Tools By Supplier: FSICEBASE, DEMO908JL16E, M68CBL05CE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 13 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Break Module (BREAK)
16.4.3 Break Status Register
The break status register contains a flag to indicate that a break caused an exit from stop or wait mode.
SBSW — SIM Break Stop/Wait
SBSW can be read within the break state SWI routine. The user can modify the return address on the
stack by subtracting one from it. The following code is an example of this.
182
;
;
;
;
This code works if the H register has been pushed onto the stack in the break
service routine software. This code should be executed at the end of the
break service routine software.
HIBYTE
LOBYTE
DOLO
RETURN
This status bit is useful in applications requiring a return to wait or stop mode after exiting from a break
interrupt. Clear SBSW by writing a logic zero 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
EQU
EQU
If not SBSW, do RTI
BRCLR
TST
BNE
DEC
DEC
PULH
RTI
Address:
Address:
Reset:
Reset:
Read:
Read:
Write:
Write:
MC68HC908JL8/JK8 • MC68HC08JL8/JK8 • MC68HC908KL8 Data Sheet, Rev. 3.1
5
6
SBSW,BSR, RETURN
LOBYTE,SP
DOLO
HIBYTE,SP
LOBYTE,SP
$FE0D
$FE00
Bit 7
Bit 7
Bit 7
R
R
0
Figure 16-5. Break Address Register Low (BRKL)
Figure 16-6. Break Status Register (BSR)
= Reserved
R
6
6
0
6
R
5
5
0
5
;
;
; If RETURNLO is not zero,
; then just decrement low byte.
; Else deal with high byte, too.
; Point to WAIT/STOP opcode.
; Restore H register.
See if wait mode or stop mode was exited
by break.
R
4
4
0
4
1. Writing a logic zero clears SBSW.
R
3
3
0
3
R
2
2
0
2
Note
SBSW
1
1
0
1
0
(1)
Freescale Semiconductor
Bit 0
Bit 0
Bit 0
R
0