參數(shù)資料
型號(hào)： P89C668HBBD
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： 微控制器/微處理器
英文描述： 80C51 8-bit Flash microcontroller family 64KB ISP FLASH with 8KB RAM
中文描述： 8-BIT, FLASH, 33 MHz, MICROCONTROLLER, PQFP44
封裝： 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-389-1, LQFP-44
文件頁(yè)數(shù)： 49/54頁(yè)
文件大小： 299K
代理商： P89C668HBBD
Philips Semiconductors
Preliminary data
P89C668
80C51 8-bit Flash microcontroller family
64KB ISP Flash with 8KB RAM
2001 Jul 27
49
In Application Programming Method
Several In Application Programming (IAP) calls are available for use
by an application program to permit selective erasing and
programming of Flash sectors. All calls are made through a common
interface, PGM_MTP. The programming functions are selected by
setting up the microcontroller’s registers before making a call to
PGM_MTP at FFF0H. The oscillator frequency is an integer number
rounded down to the nearest megahertz. For example, set R0 to 11
for 11.0592 MHz. Results are returned in the registers. The API calls
are shown in Table 10.
Using the Watchdog Timer (WDT)
The P89C668 supports the use of the WDT in IAP. The user
specifies that the WDT is to be fed by setting the most significant bit
of the function passed in R1 prior to calling PCM_MTP. The WDT
function is only supported for Block Erase when using the Quick
Block Erase. The Quick Block Erase is specified by performing a
Block Erase with register R0 = 0. Requesting a WDT feed during
IAP should only be performed in applications that use the WDT
since the process of feeding the WDT will start the WDT if the WDT
was not running.
Table 10.
IAP calls
IAP CALL
PARAMETER
PROGRAM DATA BYTE
Input Parameters:
R0 = osc freq (integer)
R1 = 02h
R1 = 82h (WDT feed)
DPTR = address of byte to program
ACC = byte to program
Return Parameter
ACC = 00 if pass, !00 if fail
ERASE BLOCK
Input Parameters:
R0 = osc freq (integer)
R0 = 0 (Quick Erase)
R1 = 01h
R1 = 81h (WDT feed)
DPH = block code as shown below:
block 0, 0k to 8k, 00H
block 1, 8k to 16k, 20H
block 2, 16k to 32k, 40H
block 3, 32k to 48k, 80H
block 4, 48k to 64k, C0H
DPL = 00h
Return Parameter
none
ERASE BOOT VECTOR
Input Parameters:
R0 = osc freq (integer)
R1 = 04h
R1 = 84h (WDT feed)
DPH = 00h
DPL = don’t care
Return Parameter
none
PROGRAM SECURITY BIT
Input Parameters:
R0 = osc freq (integer)
R1 = 05h
R1 = 85h (WDT feed)
DPH = 00h
DPL = 00h – security bit # 1 (inhibit writing to Flash)
01h – security bit # 2 (inhibit Flash verify)
02h – security bit # 3 (disable external memory)
Return Parameter
none
Input Parameters:
R0 = osc freq (integer)
R1 = 06h
R1 = 86h (WDT feed)
DPH = 00h
DPL = 00h – program status byte
ACC = status byte
Return Parameter
ACC = status byte
PROGRAM STATUS BYTE
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P89C668HBBD/00,557 功能描述:8位微控制器 -MCU 64K/8K FL 6CLK ISP/IAP QFP COM 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
P89C668HFA 功能描述:8位微控制器 -MCU 80C51 64K FL / 8K RM 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
P89C668HFA/00,512 功能描述:8位微控制器 -MCU 64K/8K FL 6CLK ISP/IAP PLCC IN 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
P89C669 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:80C51 8-bit microcontroller family with extended memory 96 kB Flash with 2 kB RAM
P89C669BBD 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:80C51 8-bit microcontroller family with extended memory 96 kB Flash with 2 kB RAM
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