- 您现在的位置：买卖IC网 > PDF目录17109 > EVAL-ADUC7122QSPZ (Analog Devices Inc)BOARD EVALUATION FOR ADUC7122 PDF资料下载
参数资料
| 型号： | EVAL-ADUC7122QSPZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 30/96页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR ADUC7122 |
| 设计资源： | EVAL-ADUC7122 Schematic ADUC7122 Gerber Files ADUC7122 BOM |
| 标准包装： | 1 |
| 系列： | MicroConverter® ADuC7xxx |
| 类型： | MCU |
| 适用于相关产品： | ADUC7122 |
| 所含物品： | 板 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页当前第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页
ADuC7122
Rev. 0 | Page 36 of 96
NONVOLATILE FLASH/EE MEMORY
FLASH/EE MEMORY OVERVIEW
The ADuC7122 incorporates Flash/EE memory technology
on-chip to provide the user with nonvolatile, in-circuit
reprogrammable memory space.
Like EEPROM, Flash memory can be programmed in-system
at a byte level, although it must first be erased. The erase is
performed in page blocks. As a result, Flash memory is often
and more correctly referred to as Flash/EE memory.
Overall, Flash/EE memory represents a step closer to the ideal
memory device that includes no volatility, in-circuit program-
mability, high density, and low cost. Incorporated in the
ADuC7122, Flash/EE memory technology allows the user to
update program code space in-circuit, without the need to
replace one-time programmable (OTP) devices at remote
operating nodes.
FLASH/EE MEMORY
The ADuC7122 contains two 64 kB arrays of Flash/EE memory.
In the upper block of Flash/EE memory, the bottom 62 kB are
available to the user and the top 2 kB of this Flash/EE program
memory array contain permanently embedded firmware, allow-
ing in-circuit serial download. The 2 kB of embedded firmware
also contain a power-on configuration routine that downloads
factory-calibrated coefficients to the various calibrated peripherals
(band gap references and so on). This 2 kB embedded firmware is
hidden from user code. It is not possible for the user to read, write,
or erase this page. In the second block, all 64 kB of Flash/EE
memory are available to the user.
The 126 kB of Flash/EE memory can be programmed in-circuit,
using the serial download mode or the JTAG mode provided.
Flash/EE Memory Reliability
The Flash/EE memory arrays on the ADuC7122 is fully
qualified for two key Flash/EE memory characteristics:
Flash/EE memory cycling endurance and Flash/EE memory
data retention.
Endurance quantifies the ability of the Flash/EE memory
to be cycled through many program, read, and erase cycles.
A single endurance cycle is composed of four independent,
sequential events:
1.
Initial page erase sequence
2.
Read/verify a single Flash/EE sequence
3.
Byte program memory sequence
4.
Second read/verify endurance cycle sequence
In reliability qualification, three separate page blocks from each
Flash/EE memory block is tested. An entire Flash/EE page at
the top, middle, and bottom of each Flash/EE memory block is
cycled 10,000 times from 0x0000 to 0xFFFF.
As indicated in the General Description section, the Flash/EE
memory endurance qualification is carried out in accordance with
JEDEC Retention Lifetime Specification A117 over the industrial
temperature range of –10° to +95°C. The results allow the
specification of a minimum endurance figure over a varying
supply across the industrial temperature range for 10,000 cycles.
Retention quantifies the ability of the Flash/EE memory to
retain its programmed data over time. The parts are qualified
in accordance with the formal JEDEC Retention Lifetime
Specification (A117) at a specific junction temperature (TJ =
85°C). As part of this qualification procedure, the Flash/EE
memory is cycled to its specified endurance limit, described
previously, before data retention is characterized. This means
that the Flash/EE memory is guaranteed to retain its data for
its fully specified retention lifetime every time the Flash/EE
memory is reprogrammed. Note, too, that retention lifetime,
based on activation energy of 0.6 eV, derates with TJ, as shown
150
300
450
600
30
40
55
70
85
100
125
135
150
RE
T
E
N
T
IO
N
(
Y
ea
rs
)
0
08
75
5-
02
6
JUNCTION TEMPERATURE (°C)
Figure 25. Flash/EE Memory Data Retention
Serial Downloading (In-Circuit Programming)
The ADuC7122 facilitates code download via the I2C serial
port. The ADuC7122 enters serial download mode after a reset
or power cycle if the BM pin is pulled low through an external
1 kΩ resistor. This is combined with the state of Address
0x00014 in Flash. If this address is 0xFFFFFFFF and the BM pin
is pulled low, the part enters download mode; if this address
contains any other value, user code is executed. When in serial
download mode, the user can download code to the full 126 kB
of Flash/EE memory while the device is in-circuit in its target appli-
cation hardware. A PC executable serial download and hardware
dongle are provided as part of the development system for serial
downloads via the I2C port.
JTAG Access
The JTAG protocol uses the on-chip JTAG interface to facilitate
code download and debug.
相关PDF资料 |
PDF描述 |
|---|---|
| EVAL-ADUC7124QSPZ | BOARD EVALUATION FOR ADUC7124 |
| ECM30DCWN | CONN EDGECARD 60POS DIP .156 SLD |
| EVAL-ADUC7121QSPZ | BOARD EVALUATION FOR ADUC7121 |
| EVAL-ADUC7126QSPZ | BOARD EVALUATION FOR ADUC7126 |
| REC5-243.3SRWZ/H4/A | CONV DC/DC 5W 9-36VIN 3.3VOUT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-ADUC7124QSPZ | 功能描述:BOARD EVALUATION FOR ADUC7124 RoHS:是 类别:编程器，开发系统 >> 通用嵌入式开发板和套件（MCU、DSP、FPGA、CPLD等） 系列:MicroConverter® ADuC7xxx 标准包装:1 系列:PICDEM™ 类型:MCU 适用于相关产品:PIC10F206，PIC16F690，PIC16F819 所含物品:板，线缆，元件，CD，PICkit 编程器 产品目录页面:659 (CN2011-ZH PDF) |
| EVAL-ADUC7126QSPZ | 功能描述:BOARD EVALUATION FOR ADUC7126 RoHS:是 类别:编程器，开发系统 >> 通用嵌入式开发板和套件（MCU、DSP、FPGA、CPLD等） 系列:MicroConverter® ADuC7xxx 标准包装:1 系列:PICDEM™ 类型:MCU 适用于相关产品:PIC10F206，PIC16F690，PIC16F819 所含物品:板，线缆，元件，CD，PICkit 编程器 产品目录页面:659 (CN2011-ZH PDF) |
| EVAL-ADUC7128QSPZ | 功能描述:KIT DEV FOR ADUC7128 RoHS:是 类别:编程器，开发系统 >> 通用嵌入式开发板和套件（MCU、DSP、FPGA、CPLD等） 系列:QuickStart™ PLUS 套件 产品培训模块:Blackfin® Processor Core Architecture Overview Blackfin® Device Drivers Blackfin® Optimizations for Performance and Power Consumption Blackfin® System Services 特色产品:Blackfin? BF50x Series Processors 标准包装:1 系列:Blackfin® 类型:DSP 适用于相关产品:ADSP-BF548 所含物品:板，软件，4x4 键盘，光学拨轮，QVGA 触摸屏 LCD 和 40G 硬盘 配用:ADZS-BFBLUET-EZEXT-ND - EZ-EXTENDER DAUGHTERBOARDADZS-BFLLCD-EZEXT-ND - BOARD EXT LANDSCAP LCD INTERFACE 相关产品:ADSP-BF542BBCZ-4A-ND - IC DSP 16BIT 400MHZ 400CSBGAADSP-BF544MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF542MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF542KBCZ-6A-ND - IC DSP 16BIT 600MHZ 400CSBGAADSP-BF547MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF548BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF547BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF544BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF542BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGA |
| EVAL-ADUC7128QSPZ2 | 制造商:AD 制造商全称:Analog Devices 功能描述:Precision Analog Microcontroller ARM7TDMI MCU with 12-Bit ADC and DDS DAC |
| EVAL-ADUC7129QSPZ | 制造商:Analog Devices 功能描述:- Bulk |
发布紧急采购，3分钟左右您将得到回复。