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| 型号： | 71M6531D-IM/F |
| 厂商： | TERIDIAN SEMICONDUCTOR CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC68 |
| 封装： | LEAD FREE, QFN-68 |
| 文件页数： | 56/120页 |
| 文件大小： | 2477K |
| 代理商： | 71M6531D-IM/F |
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Data Sheet 71M6531D/F-71M6532D/F
FDS 6531/6532 005
40
2005-2010 TERIDIAN Semiconductor Corporation
v1.3
Table 38: Bank Switching with FL_BANK[2:0]
71M6531D
FL_BANK [1:0]
71M653XF
FL_BANK [2:0]
Address Range for Lower
Bank (0x000-0x7FFF)
Address Range for Upper
Bank (0x8000-0xFFFF)
000
0x0000-0x7FFF
001
0x8000-0xFFFF
010
0x10000-0x17FFF
011
0x18000-0x1FFFF
100
0x20000-0x217FF
101
0x28000-0x2FFFF
110
0x30000-0x37FFF
111
0x38000-0x3FFFF
When enabled, the security feature limits the ICE to global flash erase operations only. All other ICE
operations are blocked. This guarantees the security of the user’s MPU and CE program code. Security
should be enabled by MPU code that is executed during the pre-boot interval (60 CKMPU cycles before
the primary boot sequence begins). Once security is enabled, the only way to disable it is to perform a
global erase of the flash, followed by a chip reset.
Program Security
The first 60 cycles of the MPU boot code are called the pre-boot phase because during this phase the
ICE is inhibited. A read-only status bit, PREBOOT, identifies these cycles to the MPU. Upon completion
of pre-boot, the ICE can be enabled and is permitted to take control of the MPU.
The security enable bit, SECURE, is reset whenever the chip is reset. Hardware associated with the bit
permits only ones to be written to it. Thus, pre-boot code may set SECURE to enable the security feature
but may not reset it. Once SECURE is set, the pre-boot code is protected and no external read of program
code is possible
Specifically, when SECURE is set, the following applies:
The ICE is limited to bulk flash erase only.
Page zero of flash memory, the preferred location for the user’s pre-boot code, may not be
page-erased by either MPU or ICE. Page zero may only be erased with global flash erase.
Write operations to page zero, whether by MPU or ICE are inhibited.
MPU/CE RAM:
The 71M6531D/F and 71M6532D/F include 4 KB of static RAM memory on-chip (XRAM) plus 256-bytes
of internal RAM in the MPU core. The 4 KB of static RAM are used for data storage for MPU and CE
operations.
1.5.6
Optical Interface
The device includes an interface to implement an IR/optical port. The pin OPT_TX is designed to directly
drive an external LED for transmitting data on an optical link. The pin OPT_RX has the same threshold
as the RX pin, but can also be used to sense the input from an external photo detector used as the receiver
for the optical link. OPT_TX and OPT_RX are connected to a dedicated UART port (UART1).
The OPT_TX and OPT_RX pins can be inverted with configuration bits OPT_TXINV and OPT_RXINV,
respectively. Additionally, the OPT_TX output may be modulated at 38 kHz. Modulation is available when
system power is present (i.e. not in BROWNOUT mode). The OPT_TXMOD bit enables modulation. Duty
cycle is controlled by OPT_FDC[1:0], which can select 50%, 25%, 12.5% and 6.25% duty cycle. 6.25% duty
cycle means OPT_TX is low for 6.25% of the period. Figure 9 illustrates the OPT_TX generator.
When not needed for the optical UART, the OPT_TX pin can alternatively be configured as DIO2,
WPULSE, or VARPULSE. The configuration bits are OPT_TXE[1:0]. Likewise, OPT_RX can alternately
be configured as DIO1. Its control is OPT_RXDIS.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6531D-IMR/F | 功能描述:计量片上系统 - SoC Residential Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 71M6531D-IMR/F1 | 功能描述:计量片上系统 - SoC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 71M6531D-IMR/F2 | 功能描述:计量片上系统 - SoC Residential Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 71M6531F | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Energy Meter IC |
| 71M6531F-DB | 功能描述:开发板和工具包 - 8051 71M6531F Demo Brd RoHS:否 制造商:Silicon Labs 产品:Development Kits 工具用于评估:C8051F960, Si7005 核心: 接口类型:USB 工作电源电压: |
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