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| 型號(hào)： | 71M6543G-IGT/F |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類(lèi)： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 封裝： | LEAD FREE, LQFP-100 |
| 文件頁(yè)數(shù)： | 127/157頁(yè) |
| 文件大小： | 2178K |
| 代理商： | 71M6543G-IGT/F |
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71M6543F/H and 71M6543G/GH Data Sheet
v1.2
2008–2011 Teridian Semiconductor Corporation
71
Name
Location
Rst
Wk
Dir
Description
SPI_STAT
2708[7:0]
0
R
SPI_STAT contains the status results from the previous
SPI transaction
Bit 7 - 71M6543 ready error: the 71M6543 was not
ready to read or write as directed by the previous
command.
Bit 6 - Read data parity: This bit is the parity of all bytes
read from the 71M6543 in the previous command. Does
not include the SPI_STAT byte.
Bit 5 - Write data parity: This bit is the overall parity of
the bytes written to the 71M6543 in the previous
command. It includes CMD and ADDR bytes.
Bit 4:2 - Bottom 3 bits of the byte count. Does not
include ADDR and CMD bytes. One, two, and three
byte instructions return 111.
Bit 1 - SPI FLASH mode: This bit is zero when the
TEST pin is zero.
Bit 0 - SPI FLASH mode ready: Used in SPI FLASH
mode. Indicates that the flash is ready to receive
another write instruction.
SPI Flash Mode (SFM)
In normal operation, the SPI slave interface cannot read or write the flash memory. However, the
71M6543 supports a special flash mode (SFM) which facilitates initial programming of the flash memory.
When the 71M6543 is in this mode, the SPI can erase, read, and write the flash memory. Other memory
elements such as XRAM and IO RAM are not accessible in this mode. In order to protect the flash
contents, several operations are required before the SFM mode is successfully invoked.
In SFM mode, the 71M6543 supports n byte reads and dual-byte writes to flash memory. See the SPI
Transaction description on Page 69 for the format of read and write commands. Since the flash write
operation is always based on a two-byte word, the initial address must always be even. Data is written to
the 16-bit flash memory bus after the odd word is written.
When the 71M6543G/GH is operating SFM, SPI single-byte transactions are used to write to
FL_BANK[1:0] (SFR 0xB6[1:0]). During an SPI single-byte transaction, SPI_CMD[1:0] will over-write the
contents of FL_BANK[1:0] (SFR 0xB6[1:0]). This will allow for access of the entire 128 KB flash memory
while operating in SFM.
In SFM mode, the MPU is completely halted. For this reason, the interrupt feature described in the SPI
Transaction section above is not available in SFM mode. The 71M6543 must be reset by the WD timer or
by the RESET pin in order to exit SFM mode.
Invoking SFM
The following conditions must be met prior to invoking SFM:
ICE_E = 1. This disables the watchdog and adds another layer of protection against inadvertent
Flash corruption.
The external power source (V3P3SYS, V3P3A) is at the proper level (> 3.0 VDC).
PREBOOT = 0 (SFR 0xB2[7]). This validates the state of the SECURE bit (SFR 0xB2[6]).
SECURE = 0. This I/O RAM register indicates that SPI secure mode is not enabled. Operations are
limited to SFM Mass Erase mode if the SECURE bit = 1 (Flash read back is not allowed in Secure mode).
FLSH_UNLOCK[3:0] = 0010 (I/O RAM 0x2702[7:4]).
The I/O RAM registers SFMM (I/O RAM 0x2080) and SFMS (I/O RAM 0x2081) are used to invoke SFM. Only
the SPI interface has access to these two registers. This eliminates an indirect path from the MPU for
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| 71M6543G-IGTR/F | 功能描述:計(jì)量片上系統(tǒng) - SoC Precision Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類(lèi)型:Metering SoC 最大時(shí)鐘頻率:70 Hz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類(lèi)型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel |
| 71M6543GT-IGT/F | 制造商:Maxim Integrated Products 功能描述:3-PHASE, 128KK, PRES TEMP SENSOR - Bulk |
| 71M6543GT-IGTR/F | 制造商:Maxim Integrated Products 功能描述:3-PHASE, 128KK, PRES TEMP SENSOR - Tape and Reel |
| 71M6543H | 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Selectable Gain of 1 or 8 for One Current Energy Meter ICs Metrology Compensation |
| 71M6543H-IGT/F | 功能描述:IC ENERGY METER 100-LQFP 制造商:maxim integrated 系列:Single Converter Technology? 包裝:托盤(pán) 零件狀態(tài):停產(chǎn) 輸入阻抗:- 測(cè)量誤差:0.1% 電壓 - I/O 高:2V 電壓 - I/O 低:0.8V 電流 - 電源:- 電壓 - 電源:3 V ~ 3.6 V 表計(jì)類(lèi)型:3 相 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:100-LQFP 供應(yīng)商器件封裝:100-LQFP（14x14） 標(biāo)準(zhǔn)包裝:90 |
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