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參數資料
型號: 73S1209F-68IMR/F
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 電源管理
英文描述: POWER SUPPLY MANAGEMENT CKT, QCC68
封裝: LEAD FREE, QFN-68
文件頁數: 74/123頁
文件大小: 1385K
代理商: 73S1209F-68IMR/F
73S1209F Data Sheet
DS_1209F_004
1.7.10 I2C Master Interface
The 73S1209F includes a dedicated fast mode, 400kHz I
2C Master interface. The I2C interface can read
or write 1 or 2 bytes of data per data transfer frame. The MPU communicates with the interface through
six dedicated SFR registers:
Device Address (DAR)
Write Data (WDR)
Secondary Write Data (SWDR)
Read Data (RDR)
Secondary Read Data (SRDR)
Control and Status (CSR)
The DAR register is used to set up the slave address and specify if the transaction is a read or write
operation. The CSR register sets up, starts the transaction and reports any errors that may occur. When
the I
2C transaction is complete, the I2C interrupt is reported via external interrupt 6. The I2C interrupt is
automatically de-asserted when a subsequent I
2C transaction is started. The I2C interface uses a 400kHz
clock from the time-base circuits.
1.7.10.1 I2C Write Sequence
To write data on the I
2C Master Bus, the 80515 has to program the following registers according to the
following sequence:
1. Write slave device address to Device Address register (DAR). The data contains 7 bits for the slave
device address and 1 bit of op-code. The op-code bit should be written with a 0 to indicate a write
operation.
2. Write data to Write Data register (WDR). This data will be transferred to the slave device.
3. If writing 2 bytes, set bit 0 of the Control and Status register (CSR) and load the second data byte to
Secondary Write Data register (SWDR).
4. Set bit 1 of the CSR register to start I
2C Master Bus.
5. Wait for I
2C interrupt to be asserted. It indicates that the write on I2C Master Bus is done. Refer to
information about the INT6Ctl, IEN1 and IRCON register for masking and flag operation.
54
Rev. 1.2
相關PDF資料
PDF描述
73S1209F-44IMR/F POWER SUPPLY MANAGEMENT CKT, QCC44
73S1209F-68IMR/F POWER SUPPLY MANAGEMENT CKT, QCC68
73S1209F-68IM/F POWER SUPPLY MANAGEMENT CKT, QCC68
73S1209F-44IMR/F POWER SUPPLY MANAGEMENT CKT, QCC44
73S1209F-44IM/F POWER SUPPLY MANAGEMENT CKT, QCC44
相關代理商/技術參數
參數描述
73S1209F-68M/F/P1 功能描述:8位微控制器 -MCU Contained 80515-SoC Serial Hst Interface RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
73S1209F-EB 功能描述:開發板和工具包 - 8051 73S1209F Eval Brd (Doc. Cd, Cable) RoHS:否 制造商:Silicon Labs 產品:Development Kits 工具用于評估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓:
73S1209F-IM44 DK 制造商:Maxim Integrated Products 功能描述:Development Boards & Kits - 8051 73S1209F Dev Kit Eval Bd Ice Cable Cd
73S1209F-IM44 EB 制造商:Maxim Integrated Products 功能描述:Development Boards & Kits - 8051 73S1209F Eval Brd Eval Bd Doc Cd Cable
73S1209F-IM68 DK 制造商:Maxim Integrated Products 功能描述:Development Boards & Kits - 8051 73S1209F Dev Kit Eval Bd Ice Cable Cd
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