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參數(shù)資料
| 型號： | MC68HC705J2S |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, UVPROM, 2.1 MHz, MICROCONTROLLER, CDIP20 |
| 封裝： | WINDOWED, CERDIP-20 |
| 文件頁數(shù)： | 35/82頁 |
| 文件大?。?/td> | 2545K |
| 代理商： | MC68HC705J2S |
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MEMORY
6-4
Rev. 2
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6.1.3 EPROM
Two Kbytes of user EPROM for storage of program instructions and fixed data are
located at addresses $0700–$0EFF. The eight addresses from $0FF8–$0FFF are
EPROM locations reserved for interrupt vectors and reset vectors. Eight additional
EPROM bytes are located at $0FF0–$0FF8. There are two ways to write data to
the EPROM:
The EPROM programming register contains the control bits for programming
the EPROM on a byte-by-byte basis.
The bootloader ROM contains routines to download the contents of an
external memory device to the on-chip EPROM.
6.1.3.1 EPROM Programming
The EPROM programming register, shown in Figure 6-3, contains the control bits
for programming the EPROM.
Figure 6-3. EPROM Programming Register (PROG)
LATCH — EPROM Bus Latch
This read/write bit causes address and data buses to be latched for EPROM
programming. Clearing the LATCH bit automatically clears the EPGM bit.
1 = Address and data buses configured for EPROM programming
0 = Address and data buses configured for normal operation
EPGM — EPROM Programming
This read/write bit applies programming power to the EPROM. To write the
EPGM bit, the LATCH bit must already be set.
1 = EPROM programming power switched on
0 = EPROM programming power switched off
Bits 7–3 and 1 — Not used; always read as zeros.
PROG — EPROM Programming Register
$001C
Bit 7
6
5
4
3
2
1
Bit 0
0
LATCH
0
EPGM
RESET
0
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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| MC68HC705JP7CDW | 功能描述:IC MCU 8BIT 28-SOIC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標(biāo)準(zhǔn)包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設(shè)備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND |
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