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參數(shù)資料
| 型號： | MC68HC11D0CFN2 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, 2 MHz, MICROCONTROLLER, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁數(shù)： | 65/138頁 |
| 文件大?。?/td> | 1047K |
| 代理商： | MC68HC11D0CFN2 |
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Operating Modes and Memory
MC68HC711D3 Data Sheet, Rev. 2.1
32
Freescale Semiconductor
2.4.2 Programming the EPROM with Downloaded Data
When using this method, the EPROM is programmed by software while in the special test or bootstrap
modes. User-developed software can be uploaded through the SCI or a ROM-resident EPROM
programming utility can be used. The 12-volt nominal programming voltage must be present on the
XIRQ/VPP pin. To use the resident utility, bootload a 3-byte program consisting of a single jump instruction
to $BF00. $BF00 is the starting address of a resident EPROM programming utility. The utility program
sets the X and Y index registers to default values, then receives programming data from an external host,
and puts it in EPROM. The value in IX determines programming delay time. The value in IY is a pointer
to the first address in EPROM to be programmed (default = $F000).
When the utility program is ready to receive programming data, it sends the host the $FF character. Then
it waits. When the host sees the $FF character, the EPROM programming data is sent, starting with the
first location in the EPROM array. After the last byte to be programmed is sent and the corresponding
verification data is returned, the programming operation is terminated by resetting the MCU.
2.4.3 PROM Programming Control Register
The PROM programming control register (PPROG) is used to control the programming of the OTPROM
or EPROM. PPROG is cleared on reset so that the PROM is configured for normal read.
MBE — Multiple Byte Program Enable Bit
This bit is reserved for testing.
Bit 6, 2, and 1 — Not implemented
Always read 0.
ELAT — EPROM (OTPROM) Latch Control Bit
1 = PROM address and data bus are configured for programming. Writes to PROM cause address
and data to be latched. The PROM cannot be read.
0 = PROM address and data bus are configured for normal reads. PROM cannot be programmed.
EXCOL — Select Extra Columns Bit
This bit is reserved for testing.
EXROW — Select Extra Row Bit
This bit is reserved for testing.
PGM — EPROM (OTPROM) Program Command Bit
This bit may be written only when ELAT = 1.
1 = Programming power is switched on to PROM array.
0 = Programming power is switched off.
Address: $003B
Bit 7
654321
Bit 0
Read:
MBE
0
ELAT
EXCOL
EXROW
0
PGM
Write:
Reset:
00000000
Figure 2-5. PROM Programming Control Register (PPROG)
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| MC68HC711D3CP3 | 8-BIT, OTPROM, 3 MHz, MICROCONTROLLER, PDIP40 |
| MC68HC11D3CFN3 | 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PQCC44 |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC11D0CFN3 | 制造商: 功能描述: 制造商:undefined 功能描述: |
| MC68HC11D0CFNE2 | 功能描述:8位微控制器 -MCU 8B MCU 192 BYTES RAM 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT |
| MC68HC11D0CFNE2R | 功能描述:8位微控制器 -MCU 8B MCU 192 BYTES RAM 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT |
| MC68HC11D0CFNE3 | 功能描述:8位微控制器 -MCU 8B MCU 192 BYTES RAM 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT |
| MC68HC11D0CFNE3R | 功能描述:8位微控制器 -MCU 8B MCU 192 BYTES RAM 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT |
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