參數(shù)資料
型號: MCHRC705KJ1CPE
廠商: Freescale Semiconductor
文件頁數(shù): 33/108頁
文件大?。?/td> 0K
描述: IC MCU 1.2K 4MHZ OTP 16-DIP
標準包裝: 25
系列: HC05
核心處理器: HC05
芯體尺寸: 8-位
速度: 4MHz
外圍設備: POR,WDT
輸入/輸出數(shù): 10
程序存儲器容量: 1.2KB(1.2K x 8)
程序存儲器類型: OTP
RAM 容量: 64 x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 16-DIP(0.300",7.62mm)
包裝: 管件
Computer Operating Properly Module (COP)
MC68HC705KJ1 MC68HRC705KJ1 MC68HLC705KJ1 Data Sheet, Rev. 4.1
30
Freescale Semiconductor
3.3.3 Clearing the COP Watchdog
To clear the COP watchdog and prevent a COP reset, write a logic 0 to bit 0 (COPC) of the COP register
at location $07F0 (see Figure 3-1). Clearing the COP bit disables the COP watchdog timer regardless of
the IRQ/VPP pin voltage.
If the main program executes within the COP timeout period, the clearing routine should be executed only
once. If the main program takes longer than the COP timeout period, the clearing routine must be
executed more than once.
NOTE
Place the clearing routine in the main program and not in an interrupt
routine. Clearing the COP watchdog in an interrupt routine might prevent
COP watchdog timeouts even though the main program is not operating
properly.
3.4 Interrupts
The COP watchdog does not generate interrupts.
3.5 COP Register
The COP register (COPR) is a write-only register that returns the contents of EPROM location $07F0
when read.
COPC — COP Clear Bit
This write-only bit resets the COP watchdog. Reading address $07F0 returns undefined results.
3.6 Low-Power Modes
The STOP and WAIT instructions have the following effects on the COP watchdog.
3.6.1 Stop Mode
The STOP instruction clears the COP watchdog counter and disables the clock to the COP watchdog.
NOTE
To prevent the STOP instruction from disabling the COP watchdog,
program the stop-to-wait conversion bit (SWAIT) in the mask option register
to logic 1.
Address:
$07F0
Bit 7
654321
Bit 0
Read:
Write:
COPC
Reset:
UUUUUUU
0
= Unimplemented
U = Unaffected
Figure 3-1. COP Register (COPR)
相關PDF資料
PDF描述
1060025400 CONN MT-RJ SM MALE R/T BOOT
MC68S711E9CFNE2 IC MCU 12K 2MHZ OTP 52-PLCC
MC9RS08KA1CDB IC MCU 8-BIT 1K FLASH 6-DFN
MC908QB8MPE IC MCU 8BIT 8K FLASH 16-DIP
VI-26B-IY-F1 CONVERTER MOD DC/DC 95V 50W
相關代理商/技術(shù)參數(shù)
參數(shù)描述
MCHRC908JK1CPE 功能描述:IC MCU 1.5K FLASH 8BIT 20-PDIP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:HC08 標準包裝:1 系列:87C 核心處理器:MCS 51 芯體尺寸:8-位 速度:16MHz 連通性:SIO 外圍設備:- 輸入/輸出數(shù):32 程序存儲器容量:8KB(8K x 8) 程序存儲器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:外部 工作溫度:0°C ~ 70°C 封裝/外殼:44-DIP 包裝:管件 其它名稱:864285
MCHRC908JK3CPE 功能描述:IC MCU 4K FLASH 20-PDIP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:HC08 標準包裝:1 系列:87C 核心處理器:MCS 51 芯體尺寸:8-位 速度:16MHz 連通性:SIO 外圍設備:- 輸入/輸出數(shù):32 程序存儲器容量:8KB(8K x 8) 程序存儲器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:外部 工作溫度:0°C ~ 70°C 封裝/外殼:44-DIP 包裝:管件 其它名稱:864285
MCHRM2H-S-DC12V-C 制造商:SPC Multicomp 功能描述:RELAY POWER SPDT 12VDC COIL 0.54W 制造商:SPC Multicomp 功能描述:RELAY, POWER, SPDT, 12VDC COIL, 0.54W 制造商:SPC Multicomp 功能描述:RELAY, POWER, SPDT, 12VDC COIL, 0.54W; Relay Type:Power; Coil Voltage VDC Nom:12V; Contact Current Max:16A; Contact Voltage AC Nom:250V; Contact Voltage DC Nom:30V; Coil Resistance:267ohm; Coil Type:DC; Nom Operating Power:540mW; ;RoHS Compliant: Yes
MCHRM2H-S-DC24V-C 制造商:SPC Multicomp 功能描述:RELAY POWER SPDT 24VDC COIL 0.54W 制造商:SPC Multicomp 功能描述:RELAY, POWER, SPDT, 24VDC COIL, 0.54W 制造商:SPC Multicomp 功能描述:RELAY, POWER, SPDT, 24VDC COIL, 0.54W; Relay Type:Power; Coil Voltage VDC Nom:24V; Contact Current Max:16A; Contact Voltage AC Nom:250V; Contact Voltage DC Nom:30V; Coil Resistance:1.067kohm; Coil Type:DC; Nom Operating Power:540mW; ;RoHS Compliant: Yes
MCHRM3H-DC12V-A 制造商:SPC Multicomp 功能描述:RELAY POWER SPST 12VDC COIL 0.25W 制造商:SPC Multicomp 功能描述:RELAY, POWER, SPST, 12VDC COIL, 0.25W 制造商:SPC Multicomp 功能描述:RELAY, POWER, SPST, 12VDC COIL, 0.25W; Relay Type:Power; Coil Voltage VDC Nom:12V; Contact Current Max:10A; Contact Voltage AC Nom:250V; Contact Voltage DC Nom:30V; Coil Resistance:576ohm; Coil Type:DC; Nom Operating Power:250mW; ;RoHS Compliant: Yes