L99MD01 datasheet(28/54 Pages) STMICROELECTRONICS

部件名	L99MD01

功能描述	Internal PWM generation

PDF	54 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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28 / 54 page

Functional description of the SPI

L99MD01

28/54

Doc ID 17242 Rev 6

A <Read and Clear Status> operation addressed to an unused RAM address is identical to

a <Read Mode> operation (in case of unused RAM address, the second byte is equal to

00H).

The returned data byte represents the content of the register to be read.

Failures are indicated by activating the corresponding bit of the <Global Status> register.

5.6

Read device information

OC0, OC1: operating code (11 for ‘read device information mode).

The device information is stored at the ROM In the ROM memory area, the first 8 bits are

used. All unused ROM addresses are read as ‘0’.

Note:

ROM address 3FH is unused. An attempt to access this address is recognized as a

communication line error (‘Data-in stuck to VCC’) all internal registers are cleared (software

reset).

L99MD01 数据表(PDF) 28 Page - STMicroelectronics