Datasheet > BD8255MUV-E2

BD8255MUV-E2

更新时间： 2022-02-26 11:17:57

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
45页	3281K
描述
6ch System Motor Driver For Car AV

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BD8255MUV-E2 数据手册

BD8255MUV-M

Description of Blocks

■ Serial Peripheral Interface (SPI)

16 bit serial interfaces (SLV, SCLK, SDI, SDO) are provided to perform setting of operations and output levels. SPI

communication is performed while SLV terminal is in Low. SDI data are sent to internal shift register at the rising edge of

SCLK terminal. Shift register data are loaded into 12 bit internal shift register at the rising edge of SLV terminal according to

the address map. Readout operation is performed when readout bit is set to 1. Then state is read out at the falling edge of

SCLK terminal and output to SDO terminal.

◆ Input-Output Timing

Figure 4 shows write/read timing of the serial ports.

Minimum timing of each item is as shown in the table below. In order to prevent increase in delay of SPI input/output timing,

wiring between SLV/SCLK/SDI/SDO and the microcomputer should be as short as possible to minimize the wiring

capacitance.

Symbol

Item

SDI setup time *

SDI hold time *

Setup SLV to SCLK rising edge *

SCLK high pulse width *

SCLK low pulse width *

Setup SCLK rising edge to SLV *

SLV pulse width *

SDO delay time *

SDO hold time *

SDO OFF time *

SCLK frequency

Min

Typ

Max

Unit

MHz

* Guaranteed Design Items

SLV

SCLK

SDI

DN-1

SDO

Figure 4. SPI Input / Output Timing

www.rohm.com

TSZ02201-0G1G0BK00210-1-2

4.Apr.2016 Rev.004

8/41

TSZ22111・15・001

1...5 6 789 10 11...45

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