- 您現在的位置：買賣IC網 > PDF目錄371046 > MC68C912B32FU8 (MOTOROLA INC) 16-Bit Microcontroller PDF資料下載
參數資料
| 型號： | MC68C912B32FU8 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-Bit Microcontroller |
| 中文描述： | 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁數： | 46/128頁 |
| 文件大?。?/td> | 748K |
| 代理商： | MC68C912B32FU8 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁當前第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁
MOTOROLA
46
MC68HC912B32
MC68HC912B32TS/D
7.8 Program/Erase Protection Interlocks
The Flash EEPROM program and erase mechanisms provide maximum protection from accidental pro-
gramming or erasure.
The voltage required to program/erase the Flash EEPROM (V
FP
) is supplied via an external pin. If V
FP
is not present, no programming/erasing will occur. Furthermore, the program/erase voltage will not be
applied to the Flash EEPROM unless turned on by setting a control bit (ENPE). The ENPE bit may not
be set unless the programming address and data latches have been written previously with a valid ad-
dress. The latches may not be written unless enabled by setting a control bit (LAT). The LAT and ENPE
control bits must be written on separate writes to the control register (FEECTL) and must be separated
by a write to the programming latches. The ERAS and LAT bits are also protected when ENPE is set.
This prevents inadvertent switching between erase/program mode and also prevents the latched data
and address from being changed after a program cycle has been initiated.
7.9 Stop or Wait Mode
When stop or wait commands are executed, the MCU puts the Flash EEPROM in stop or wait mode. In
these modes the Flash module will cease erasure or programming immediately. It is advised not to enter
stop or wait modes when programming the Flash array.
CAUTION
The Flash EEPROM module is not able to recover from STOP without a 1 micro-
second delay. This cannot be controlled internal to the MCU. Therefore, do not at-
tempt to recover from STOP with an interrupt. Use RESET to recover from a STOP
mode executed from Flash EEPROM. Recovery from a STOP instruction executed
from EEPROM and RAM operate normally.
7.10 Test Mode
The Flash EEPROM has some special test functions which are only accessible when the device is in
test mode.
Test mode is indicated to the Flash EEPROM module when the SMOD line on the LIB is
asserted. When SMOD is asserted, the special test control bits may be accessed via the LIB to invoke
the special test functions in the Flash EEPROM module. When SMOD is not asserted, writes to the test
control bits have no effect and all bits in the test register FEETST will be cleared. This ensures that
Flash EEPROM test mode cannot be invoked inadvertently during normal operation.
Note that the Flash EEPROM module will operate normally, even if SMOD is asserted, until a special
test function is invoked. The test mode adds additional features over normal mode which allow the tests
to be performed even after the device is installed in the final product.
相關PDF資料 |
PDF描述 |
|---|---|
| MC68B912B32FU8 | 16-Bit Microcontroller |
| MC68C912B32CFU8 | 16-Bit Microcontroller |
| MC68CK338 | Highly Integrated, Low-Power, 32-Bit Microcontroller |
| MC68EC060 | 32-Bit Microprocessors.(32位微處理器) |
| MC68EN360RC25V | QUad Integrated Communications Controller Users Manual |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MC68CK16Z1 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC16Z Series |
| MC68CK16Z1CAG16 | 功能描述:16位微控制器 - MCU 16BIT 1KRAM 32KHZ CRYSTAL RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數據總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT |
| MC68CK16Z1CAG16 | 制造商:Freescale Semiconductor 功能描述:Microcontroller |
| MC68CK16Z1CFC16 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC16Z Series |
| MC68CK16Z1CPV16 | 功能描述:16位微控制器 - MCU 16 Bit 16MHz RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數據總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT |
發布緊急采購，3分鐘左右您將得到回復。