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| 型號： | DEMO9RS08KA2 |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 67/136頁 |
| 文件大?。?/td> | 0K |
| 描述： | DEMO BOARD FOR 9RS08KA2 |
| 產(chǎn)品培訓(xùn)模塊： | Mechatronics USBSpyder08 Discovery Kit RS08KA2 Low-End Microcontroller Series MC9RS08KA8 Microcontroller |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | RS08 |
| 類型： | MCU |
| 適用于相關(guān)產(chǎn)品： | MC9RS08KA2 |
| 所含物品： | 板，線纜，CD，文檔，樣品 IC |
| 產(chǎn)品目錄頁面： | 730 (CN2011-ZH PDF) |
| 相關(guān)產(chǎn)品： | MC9RS08KA2CSCRTR-ND - IC MCU 8BIT 2K FLASH 8-SOIC PC9RS08KA2PAE-ND - MCU 8BIT 2KB FLASH RS08 8-DIP PC9RS08KA2FPE-ND - MCU 8BIT 2KB FLASH RS08 6-VDFN PC9RS08KA2DWE-ND - MCU 8BIT 2KB FLASH RS08 8-SOIC MC9RS08KA2CPC-ND - IC MCU 8-BIT 2K FLASH 8-PDIP MC9RS08KA2CDB-ND - IC MCU 8-BIT 2K FLASH 6-DFN MC9RS08KA2CSC-ND - IC MCU 8-BIT 2K FLASH 8-SOIC |
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Chapter 5 Resets, Interrupts, and General System Control
MC9RS08KA2 Series Data Sheet, Rev. 4
36
Freescale Semiconductor
Computer operating properly (COP) timer
Illegal opcode detect (ILOP)
Illegal address detect (ILAD)
Background debug forced reset via BDC command BDC_RESET
Each of these sources, with the exception of the background debug forced reset, has an associated bit in
the system reset status register (SRS).
5.4
Computer Operating Properly (COP) Watchdog
The COP watchdog is intended to force a system reset if the application software fails to execute as
expected. To prevent a system reset from the COP timer (when it is enabled), application software must
reset the COP counter periodically. If the application program gets lost and fails to reset the COP counter
before it times out, a system reset is generated to force the system back to a known starting point.
After any reset, the COPE becomes set in SOPT, which enables the COP watchdog (see Section 5.8.2,
“System Options Register (SOPT),” for additional information). If the COP watchdog is not used in an
application, it can be disabled by clearing COPE. The COP counter is reset by writing any value to the
address of SRS. This write does not affect the data in the read-only SRS. Instead, the act of writing to this
address is decoded and sends a reset signal to the COP counter.
There is an associated short and long time-out controlled by COPT in SOPT. Table 5-1 summaries the
control functions of the COPT bit. The COP watchdog operates from the 1-kHz clock source and defaults
to the associated long time-out (28 cycles).
Even if the application will use the reset default settings of COPE and COPT, the user should write to the
write-once SOPT registers during reset initialization to lock in the settings. That way, they cannot be
changed accidentally if the application program gets lost. The initial write to SOPT will reset the COP
counter.
In background debug mode, the COP counter will not increment.
When the MCU enters stop mode, the COP counter is re-initialized to zero upon entry to stop mode. The
COP counter begins from zero as soon as the MCU exits stop mode.
5.5
Interrupts
The MC9RS08KA2 Series does not include an interrupt controller with vector table lookup mechanism as
used on the HC08 and HCS08 devices. However, the interrupt sources from modules such as LVD, KBI,
Table 5-1. COP Configuration Options
COPT
COP Overflow Count1
1 Values shown in this column are based on
Timing,” for the tolerance of this value.
025 cycles (32 ms)
128 cycles (256 ms)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DEMO9RS08KA8 | 功能描述:開發(fā)板和工具包 - S08 / S12 DEMO BOARD FOR KA8 PRODUCT RoHS:否 產(chǎn)品:Development Kits 工具用于評估:MC9S12G128 核心:S12 接口類型:CAN, LIN, RS-232, USB 工作電源電壓:5 V 制造商:Freescale Semiconductor |
| DEMO9RS08KB12 | 功能描述:開發(fā)板和工具包 - S08 / S12 KB12 DEMO Board RoHS:否 產(chǎn)品:Development Kits 工具用于評估:MC9S12G128 核心:S12 接口類型:CAN, LIN, RS-232, USB 工作電源電壓:5 V 制造商:Freescale Semiconductor |
| DEMO9RS08KB12 | 制造商:Freescale Semiconductor 功能描述:; LEADED PROCESS COMPATIBLE:YES; PEAK RE |
| DEMO9RS08LA8 | 功能描述:開發(fā)板和工具包 - S08 / S12 DEMO BOARD FOR LA8 RoHS:否 產(chǎn)品:Development Kits 工具用于評估:MC9S12G128 核心:S12 接口類型:CAN, LIN, RS-232, USB 工作電源電壓:5 V 制造商:Freescale Semiconductor |
| DEMO9RS08LE4 | 功能描述:開發(fā)板和工具包 - S08 / S12 LE4 Family Demo Board RoHS:否 產(chǎn)品:Development Kits 工具用于評估:MC9S12G128 核心:S12 接口類型:CAN, LIN, RS-232, USB 工作電源電壓:5 V 制造商:Freescale Semiconductor |
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