- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69028 > MC68HC05G1B (MOTOROLA INC) 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56 PDF資料下載
參數(shù)資料
| 型號： | MC68HC05G1B |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56 |
| 封裝： | SDIP-56 |
| 文件頁數(shù)： | 9/124頁 |
| 文件大?。?/td> | 732K |
| 代理商： | MC68HC05G1B |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁當(dāng)前第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
MOTOROLA
12-2
MC68HC05G1
OPERATING MODES
12
12.1
User Mode (Normal Operation)
The normal operational mode of the MC68HC05G1/
MC68HC705G1 is the user mode. The user
mode will be entered if the RESET line is brought low, and the IRQ pin is within its normal
operational range (VSS to VDD), the rising edge of the RESET will cause the MCU to enter the user
mode.
12.2
Self-Check Mode
The MC68HC05G1 self-check mode is for the user to check device functions with an on-chip
self-check program masked at location $3E00 to $3FDF under minimum hardware support. The
hardware is shown in Figure 12-3. Figure 12-2 is the criteria to enter self-check mode, where
PB1’s condition is latched within rst two clock cycles after the rising edge of the reset. PB1 can
then be used for other purposes. After entering the self-check mode, CPU branches to the
self-check program and carries out the self-check. Self-check is a repetitive test, i.e. if all parts are
checked to be good, the CPU will repeat the self-check again. Therefore, the LEDs attached to
Port A will be ashing if the device is good; else the combination of LEDs’ on-off pattern can show
what part of the device is suspected to be bad. Table 12-2 lists the LEDs’ on-off patterns and their
corresponding indications.
Table 12-1 Mode Selection
RESET
IRQ
PB1
MODE
VSS to VDD
USER
+9V Rising Edge*
VDD
SELF-CHECK/
BOOTSTRAP
* Minimum hold time should be 2 clock cycles, after that it can be used as a normal IRQ
function pin.
Figure 12-2 Self-Check Mode Timing
5V
9V
PB1
IRQ
RESET
+5V
+9V
TPG
102
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68HC705JB2DW | 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDSO20 |
| MC68HC705JB2P | 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDIP20 |
| MC68HC705JB4P | 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDIP28 |
| MC68HC705K1CDW | 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDSO16 |
| MC68HC705K1CP | 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDIP16 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC05J1 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:HCMOS MICROCONTROLLER UNIT |
| MC68HC05J1A | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers |
| MC68HC05J1ACDW | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers |
| MC68HC05J1ACP | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers |
| MC68HC05J1ADW | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。