參數(shù)資料
型號(hào)： COP8CCR9KMT8
廠商： National Semiconductor
文件頁(yè)數(shù)： 43/111頁(yè)
文件大小： 0K
描述： IC MCU EEPROM 8BIT 32K 56-TSSOP
標(biāo)準(zhǔn)包裝： 34
系列： COP8™ 8C
核心處理器： COP8
芯體尺寸： 8-位
速度： 20MHz
連通性： Microwire/Plus（SPI），UART/USART
外圍設(shè)備： 欠壓檢測(cè)/復(fù)位，POR，PWM，WDT
輸入/輸出數(shù)： 49
程序存儲(chǔ)器容量： 32KB（32K x 8）
程序存儲(chǔ)器類型： 閃存
RAM 容量： 1K x 8
電壓 - 電源 (Vcc/Vdd)： 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 16x10b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 56-TFSOP（0.240"，6.10mm 寬）
包裝： 管件
其它名稱： *COP8CCR9KMT8
SNOS535I – OCTOBER 2000 – REVISED MARCH 2013
Table 5-7. PGMTIM Register Format (continued)
PGMTIM
Register Bit
CKI Frequency Range
7
6
5
4
3
2
1
0
0
1
0
1
2 MHz–2.67 MHz
0
1
0
1
0
1
0
2.625 MHz–3.5 MHz
0
1
0
1
0
1
3.5 MHz–4.67 MHz
0
1
0
1
4.5 MHz–6 MHz
0
1
0
1
6 MHz–8 MHz
0
1
0
1
7.5 MHz–10 MHz
R
R/W
5.10.4 MANEUVERING BACK AND FORTH BETWEEN FLASH MEMORY AND BOOT ROM
When using ISP, at some point, it will be necessary to maneuver between the flash program memory and
the Boot ROM, even when using customized ISP routines. This is because it's not possible to execute
from the flash program memory while it's being programmed.
Two instructions are available to perform the jumping back and forth: Jump to Boot (JSRB) and Return to
Flash (RETF). The JSRB instruction is used to jump from flash memory to Boot ROM, and the RETF is
used to return from the Boot ROM back to the flash program memory. See Instruction Set for specific
details on the operation of these instructions.
The JSRB instruction must be used in conjunction with the Key register. This is to prevent jumping to the
Boot ROM in the event of run-away software. For the JSRB instruction to actually jump to the Boot ROM,
the Key bit must be set. This is done by writing the value shown in Table 5-8 to the Key register. The Key
is a 6 bit key and if the key matches, the KEY bit will be set for 8 instruction cycles. The JSRB instruction
must be executed while the KEY bit is set. If the KEY does not match, then the KEY bit will not be set and
the JSRB will jump to the specified location in the flash memory. In emulation mode, if a breakpoint is
encountered while the KEY is set, the counter that counts the instruction cycles will be frozen until the
breakpoint condition is cleared. If an interrupt occurs while the key is set, the key will expire before
interrupt service is complete. It is recommended that the software globally disable interrupts before setting
the key. The Key register is a memory mapped register. Its format when writing is shown in Table 5-8. In
normal operation, it is not necessary to test the KEY bit before using the JSRB instruction. The additional
instructions required to test the key may cause the key to time-out before the JSRB can be executed.
Table 5-8. KEY Register Write Format
KEY When Writing
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
1
0
1
0
X
Bits 7–2:
Key value that must be written to set the KEY bit.
Bits 1–0:
Don't care.
5.10.5 FORCED EXECUTION FROM BOOT ROM
When the user is developing a customized ISP routine, code lockups due to software errors may be
encountered. The normal, and preferred, method to recover from these conditions is to reprogram the
device with the corrected code by either an external parallel programmer or the emulation tools. As a last
resort, when this equipment is not available, there is a hardware method to get out of these lockups and
force execution from the Boot ROM MICROWIRE/PLUS routine. The customer will then be able to erase
the Flash Memory code and start over.
Copyright 2000–2013, Texas Instruments Incorporated
Functional Description
37
Product Folder Links: COP8CBR9 COP8CCR9 COP8CDR9
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COP8CCR9LVA7 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
COP8CCR9LVA7/63 制造商:Texas Instruments 功能描述:
COP8CCR9LVA7/63SN 功能描述:閃存 RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問(wèn)時(shí)間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel
COP8CCR9LVA7/NOPB 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
COP8CCR9LVA763SN 制造商:National Semiconductor 功能描述:MCU 8-bit COP8 CISC 32KB Flash 5V 68-Pin PLCC
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