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USB3813 Datasheet(PDF) 31 Page - Microchip Technology

Part # USB3813
Description  USB 2.0 Hi-Speed 3-Port Hub Controller
PDF  57 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB3813 Datasheet(HTML) 31 Page - Microchip Technology

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USB 2.0 Hi-Speed 3-Port Hub Controller Optimized for Portable Applications
Datasheet
 2014 Microchip Technology Inc.
DS00001715A-page 31
7.1.6
Byte Program Example
To perform a Byte Program, the device writes 0x02 to the first byte of the command buffer, followed
by a 3-byte address of the location that will be written to, and one data byte. The length of the transfer
is set to 5 bytes. The device first drives SPI_CE_N low, then SPI_DO outputs 8 bits of command,
followed by 24 bits of address, and one byte of data. SPI_DI is not used in this example.
Figure 7.4 SPI Byte Program Sequence
SPI_CE_N
SPI_CLK
16
23 24
31
15
39
12 3 4
05
7
6
0x00
SPI_DO
SPI_DI
8
0xDB
MSB
MSB
0xFE
/0xFF
Data
MSB
LSB
32
HIGH IMPEDANCE
0xBF



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