- 您现在的位置：买卖IC网 > PDF目录11807 > 73S1215F-44IM/F (Maxim Integrated Products)IC SMART CARD READER 44-QFN PDF资料下载
参数资料
| 型号： | 73S1215F-44IM/F |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 45/136页 |
| 文件大小： | 0K |
| 描述： | IC SMART CARD READER 44-QFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 260 |
| 系列： | 73S12xx |
| 核心处理器： | 80515 |
| 芯体尺寸： | 8-位 |
| 速度： | 24MHz |
| 连通性： | I²C，智能卡，UART/USART，USB |
| 外围设备： | LED，POR，WDT |
| 输入/输出数： | 9 |
| 程序存储器容量： | 64KB（64K x 8） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 2K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.7 V ~ 5.5 V |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 44-VFQFN 裸露焊盘 |
| 包装： | 管件 |
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页当前第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页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页
73S1215F Data Sheet
DS_1215F_003
16
Rev. 1.4
1.4 Program Security
Two levels of program and data security are available. Each level requires a specific fuse to be blown in
order to enable or set the specific security mode. Mode 0 security is enabled by setting the SECURE bit
(bit 6 of SFR register FLSHCTL 0xB2) Mode 0 limits the ICE interface to only allow bulk erase of the
flash program memory. All other ICE operations are blocked. This guarantees the security of the user’s
MPU program code. Security (Mode 0) is enabled by MPU code that sets the SECURE bit. The MPU
code must execute the setting of the SECURE bit immediately after a reset to properly enable Mode 0.
This should be the first instruction after the reset vector jump has been executed. If the “startup.a51”
assembly file is used in an application, then it must be modified to set the SECURE bit after the reset
vector jump. If not using “startup.a51”, then this should be the first instruction in main(). Once security
Mode 0 is enabled, the only way to disable it is to perform a global erase of the flash followed by a full
circuit reset. Once the flash has been erased and the reset has been executed, security Mode 0 is
disabled and the ICE has full control of the core. The flash can be reprogrammed after the bulk erase
operation is completed. Global erase of the flash will also clear the data XRAM memory.
The security enable bit (SECURE) is reset whenever the MPU is reset. Hardware associated with the bit
only allows it to be set. As a result, the code may set the SECURE bit to enable the security Mode 0
feature but may not reset it. Once the SECURE bit is set, the code is protected and no external read of
program code in flash or data (in XRAM) is possible. In order to invoke the security Mode 0, the
SECSET0 (bit 1 of the XRAM SFR register SECReg 0xFFD7) fuse must be blown beforehand or the
security mode 0 will not be enabled. The SECSET0 and SECSET1 fuses once blown, cannot be
overridden.
Specifically, when SECURE is set:
The ICE is limited to bulk flash erase only.
Page zero of flash memory may not be page-erased by either MPU or ICE. Page zero may only be
erased with global flash erase. Note that global flash erase erases XRAM whether the SECURE bit is
set or not.
Writes to page zero, whether by MPU or ICE, are inhibited.
Security mode 1 is in effect when the SECSET1 fuse has been programmed (blown open). In security
mode 1, the ICE is completely and permanently disabled. The Flash program memory and the MPU are
not available for alteration, observation, nor control. As soon as the fuse has been blown, the ICE is
disabled. The testing of the SECSET1 fuse will occur during the reset and before the start of pre-boot
and boot cycles. This mode is not reversible, nor recoverable. In order to blow the SECSET1 fuse, the
SEC pin must be held high for the fuse burning sequence to be executed properly. The firmware can
check to see if this pin is held high by reading the SECPIN bit (bit 5 of XRAM SFR register SECReg
0xFFD7). If this bit is set and the firmware desires, it can blow the SECSET1 fuse. The burning of the
SECSET0 does not require the SEC pin to be held high.
In order to blow the fuse for SECSET1 and SECSET0, a particular set of register writes in a specific order
need to be followed. There are two additional registers that need to have a specific value written to them
(0xFFD1). The sequence for blowing the fuse is as follows:
1. Write 0x54H to FUSECtl.
2. Write 0x81H for security mode 0.
Note: only program one security mode at a time.
3. Write 0x82H for security mode 1.
Note: SEC pin must be high for security mode 1.
4. Write 0xA6 to TRIMPCtl.
5. Delay about 500 us.
6. Write 0x00 to TRIMPCtl.
相关PDF资料 |
PDF描述 |
|---|---|
| D38999/20MC8PN | CONN RCPT 8POS WALL MNT W/PINS |
| D38999/20FE26PA | CONN RCPT 26POS WALL MNT W/PINS |
| 1445716-1 | CONN HOUSING/CONTACT 75SER BLUE |
| 1445716-4 | CONNECTOR KIT 75A 6AWG GREEN |
| 1445716-5 | CONNECTOR KIT 75A 6AWG RED |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 73S1215F-44IMR/F | 功能描述:8位微控制器 -MCU 80515 SoC w/USB & PINpad RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| 73S1215F-44IMR/F/P | 功能描述:IC SMART CARD READER PROG 44-QFN RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:73S12xx 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:260 系列:73S12xx 核心处理器:80515 芯体尺寸:8-位 速度:24MHz 连通性:I²C，智能卡，UART/USART，USB 外围设备:LED，POR，WDT 输入/输出数:9 程序存储器容量:64KB（64K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:2K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:68-VFQFN 裸露焊盘 包装:管件 |
| 73S1215F-44MR/F/PC | 制造商:Maxim Integrated Products 功能描述:MXM73S1215F-44MR/F/PC SCR +PIN PAD, SRL |
| 73S1215F-68IM/F | 功能描述:8位微控制器 -MCU 80515 SoC w/USB & PINpad RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| 73S1215F-68IM/F/P | 功能描述:IC SMART CARD READER PROG 68-QFN RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:73S12xx 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:260 系列:73S12xx 核心处理器:80515 芯体尺寸:8-位 速度:24MHz 连通性:I²C，智能卡，UART/USART，USB 外围设备:LED，POR，WDT 输入/输出数:9 程序存储器容量:64KB（64K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:2K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:68-VFQFN 裸露焊盘 包装:管件 |
发布紧急采购，3分钟左右您将得到回复。