- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69026 > MC68HC05C9AMP (FREESCALE SEMICONDUCTOR INC) 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP40 PDF資料下載
參數(shù)資料
| 型號： | MC68HC05C9AMP |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP40 |
| 封裝： | PLASTIC, DIP-40 |
| 文件頁數(shù)： | 39/124頁 |
| 文件大?。?/td> | 774K |
| 代理商： | MC68HC05C9AMP |
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頁當(dāng)前第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
MC68HC05C9A Advance Information Data Sheet, Rev. 5.1
Freescale Semiconductor
21
Chapter 2
Memory
2.1 Introduction
The microcontroller unit (MCU) has a 16-Kbyte memory map. The memory map consists of:
Input/output (I/O), control, and status registers
User random-access memory (RAM)
User read-only memory (ROM)
Self-check ROM
Reset and interrupt vectors
See Figure 2-1 and Figure 2-2.
Two control bits in the option register ($3FDF) allow the user to switch between RAM and ROM at any
time in two special areas of the memory map, $0020–$004F (48 bytes) and $0100–$017F (128 bytes).
2.2 RAM
The main user RAM consists of 176 bytes at $0050–$00FF. This RAM area is always present in the
memory map and includes a 64-byte stack area. The stack pointer can access 64 bytes of RAM in the
range $00FF down to $00C0.
NOTE
Using the stack area for data storage or temporary work locations requires
care to prevent it from being overwritten due to stacking from an interrupt
or subroutine call.
Two additional RAM areas are available at $0020–$004F (48 bytes) and $0100–$017F (128 bytes) (see
Figure 2-1 and Figure 2-2.) These may be accessed at any time by setting the RAM0 and RAM1 bits,
respectively, in the option register.
Refer to 1.4 Software-Programmable Options for additional information.
2.3 ROM
The user ROM consists of 48 bytes of page zero ROM from $0020 to $004F, 15,872 bytes of ROM from
$0100 to $3EFF, and 16 bytes of user vectors from $3FF0 to $3FFF.
2.4 ROM Security
A security feature has been incorporated into the MC68HC05C9A to help prevent external access to the
contents of the ROM in any mode of operation.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68HC05C9ECP | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP40 |
| MC68HC05CC2B | 8-BIT, MROM, 4.2 MHz, MICROCONTROLLER, PDIP42 |
| MC68HC05CJ4FB | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44 |
| MC68HC705CJ4FB | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQFP44 |
| MC68HC05E0FN | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQCC68 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC05C9AP | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers |
| MC68HC05C9CP | 制造商:Motorola Inc 功能描述:IC UP HCMOS 68HC05C9CP DIP40 0 |
| MC68HC05C9E | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers |
| MC68HC05C9ECFB | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers |
| MC68HC05C9ECP | 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)。