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參數(shù)資料
| 型號： | MAXQ3120-FFN+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 4/33頁 |
| 文件大小： | 0K |
| 描述： | IC MCU 32KB FLASH 80-MQFP |
| 標準包裝： | 66 |
| 系列： | MAXQ® |
| 核心處理器： | RISC |
| 芯體尺寸： | 16-位 |
| 速度： | 8MHz |
| 連通性： | UART/USART |
| 外圍設備： | LCD，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 32 |
| 程序存儲器容量： | 32KB（16K x 16） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 512 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.8 V ~ 3.6 V |
| 數(shù)據(jù)轉換器： | A/D 2x16b |
| 振蕩器型： | 內部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 80-BQFP |
| 包裝： | 托盤 |
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MAXQ3120
Following any reset, execution begins in the utility
ROM. The ROM software determines whether the pro-
gram execution should immediately jump to the start of
user-application code (located at address 0000h), or to
one of the special routines mentioned. Routines within
the utility ROM are user-accessible and can be called
as subroutines by the application software. More infor-
mation on the utility ROM contents is contained in the
user’s guide supplement for this device.
Some applications require protection against unautho-
rized viewing of program code memory. For these
applications, access to in-system programming, in-
application programming, or in-circuit debugging func-
tions is prohibited until a password has been supplied.
A single password-lock (PWL) bit is implemented in the
SC register. When the PWL is set to one (power-on
reset default), the password is required to access the
utility ROM, including in-circuit debug and in-system
programming routines that allow reading or writing of
internal memory. When PWL is cleared to zero, these
utilities are fully accessible without the password. The
password is automatically set to all ones following a
mass erase.
Programming
The flash memory of the microcontroller can be pro-
grammed by two different methods: in-system program-
ming and in-application programming. Both methods
afford great flexibility in system design as well as reduce
the life-cycle cost of the embedded system. These fea-
tures can be password protected to prevent unautho-
rized access to code memory.
In-System Programming
An internal bootstrap loader allows the device to be
reloaded over a simple JTAG interface. As a result, sys-
tem software can be upgraded in-system, eliminating
the need for a costly hardware retrofit when software
updates are required. Remote software uploads are
possible that enable physically inaccessible applica-
tions to be frequently updated. The interface hardware
can be a JTAG connection to another microcontroller, or
a connection to a PC serial port using a serial-to-JTAG
converter such as the MAXQJTAG-001, available from
Maxim Integrated Products/Dallas Semiconductor. If in-
system programmability is not required, a commercial
gang programmer can be used for mass programming.
Activating the JTAG interface and loading the test
access port (TAP) with the system programming instruc-
tion invokes the bootloader. Setting the SPE bit to 1 dur-
ing reset through the JTAG interface executes the
bootloader-mode program that resides in the utility
ROM. When programming is complete, the bootloader
can clear the SPE bit and reset the device, allowing the
device to bypass the utility ROM and begin execution of
the application software.
The following bootloader functions are supported:
Load
Dump
CRC
Verify
Erase
In-Application Programming
The in-application programming feature allows the
microcontroller to modify its own flash program memory
while simultaneously executing its application software.
This allows on-the-fly software updates in mission-criti-
cal applications that cannot afford downtime.
Alternatively, it allows the application to develop custom
loader software that can operate under the control of the
application software. The utility ROM contains user-
accessible flash programming functions that erase and
program flash memory. These functions are described
in detail in the user’s guide supplement for this device.
Register Set
Most functions of the device are controlled by sets of
registers. These registers provide a working space for
memory operations as well as configuring and address-
ing peripheral registers on the device. Registers are
divided into two major types: system registers and
peripheral registers. The common register set, also
known as the system registers, includes the ALU, accu-
mulator registers, data pointers, interrupt vectors and
control, and stack pointer. The peripheral registers
define additional functionality that may be included by
different products based on the MAXQ architecture.
This functionality is broken up into discrete modules so
that only the features required for a given product need
to be included. Tables 1 and 4 show the MAXQ3120
register set.
High-Precision ADC
Mixed-Signal Microcontroller
12
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAXQ3120-FFN+ | 功能描述:IC MCU 32KB FLASH 80-MQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MAXQ® 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:260 系列:73S12xx 核心處理器:80515 芯體尺寸:8-位 速度:24MHz 連通性:I²C，智能卡，UART/USART，USB 外圍設備:LED，POR，WDT 輸入/輸出數(shù):9 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:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉換器:- 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-VFQFN 裸露焊盤 包裝:管件 |
| MAXQ3120-KIT | 制造商:Maxim Integrated Products 功能描述:MAXQ3120 EVALUATION KIT - Bulk |
| MAXQ314 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Single-Phase Power-Measurement IC with I2C Interface |
| MAXQ314+ | 功能描述:16位微控制器 - MCU Integrated Circuits (ICs) PMIC - Energy Metering - IC PWR MEASUREMENT 1PH 10-TQFN RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT |
| MAXQ314-KIT | 功能描述:開發(fā)板和工具包 - 其他處理器 MAXQ314 Eval Kit RoHS:否 制造商:Freescale Semiconductor 產品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
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