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參數(shù)資料
| 型號(hào)： | MC68HC711G5CFN |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQCC84 |
| 封裝： | PLASTIC, LCC-84 |
| 文件頁(yè)數(shù)： | 109/195頁(yè) |
| 文件大?。?/td> | 1940K |
| 代理商： | MC68HC711G5CFN |
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OPERATING MODES AND SIGNAL DESCRIPTION
2-2
2.1.1
Single Chip Operating Mode
In single chip mode, the MCU functions as a self-contained microcontroller and has no external
address or data bus. This mode provides maximum use of the pins for on-chip peripheral functions
(66 pins). In single chip mode the R/W line is always high (read) to facilitate changing mode.
2.1.2
Expanded Non-Multiplexed Operating Mode
In the expanded non-multiplexed mode, the MCU can address up to 64 kbytes of address space.
High order address bits are output on Port B and low order address bits are output on Port F. The
bidirectional data bus is on Port C and the R/W pin is used to control the direction of data transfer
on this bus.
2.1.3
Bootstrap Operating Mode
This is a very versatile operating mode since there are essentially no limitations on the special
purpose program that can be loaded into internal RAM. The resident bootstrap program, contained
in the bootstrap ROM, uses the SCI to read a variable length program into on-chip RAM. Program
control is passed to RAM at location $0000 when an idle line of at least four characters occurs.
The MC68HC11G5 communicates through the SCI port. After reset in bootstrap mode, the SCI runs
at E/16 (7812 baud for E-clock = 2 MHz). A break condition is output on the SCI transmitter. For
normal use of the bootstrap program, the user must send $FF to the SCI receiver at either E/16 or
E/104 (1200 baud for E-clock = 2 MHz).
Note: The $FF is not echoed through the SCI transmitter.
In this mode all interrupt vectors are mapped to pseudo-vectors in RAM (refer to Table 2-2). This
allows programmers to use their own service-routine addresses. Each pseudo-vector is allowed
three bytes of space, rather than the two bytes for normal vectors, because an explicit jump (JMP)
opcode is needed to cause the desired jump to the user’s service-routine address.
Since the SMOD control bit is initialized to one, all of the privileged control bits are accessible in this
mode. This allows the bootstrap mode to be used for test and diagnostic functions on completed
modules. Mode switching can occur under program control by writing to the SMOD and MDA bits
of the HPRIO register.
2.1.4
Test Operating Mode
This special expanded mode is primarily intended for factory testing. In this mode the reset and
interrupt vectors are fetched externally from locations $BFFE – $BFFF. The SMOD bit in the HPRIO
register will be set, indicating that a special mode is in effect and allowing the user to write to certain
privileged control bits which are normally read-only bits. Also, a special register, TEST1, is enabled
which allows several factory test functions to be invoked.
It is also possible to change from the test mode to a normal operating mode by writing a zero to the
SMOD bit. Once this bit is cleared, it cannot be changed back to one without going through a reset
sequence.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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| MC68HC711K4CFN4 | 功能描述:IC MCU 24K OTP 4MHZ 84-PLCC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC11 標(biāo)準(zhǔn)包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN，SCI，SPI 外圍設(shè)備:POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):21 程序存儲(chǔ)器容量:40KB（20K x 16） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
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| MC68HC711K4CFU4 | 功能描述:IC MCU 24K 4MHZ EEPROM 80-QFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC11 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(chǔ)器容量:64KB（64K x 8） 程序存儲(chǔ)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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