STMPE2401 datasheet(39/55 Pages) STMICROELECTRONICS

部件名	STMPE2401

功能描述	24-bit Enhanced port expander with Keypad and PWM controller Xpander logic

PDF	55 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

39 / 55 page

STMPE2401

PWM commands

39/55

In order to enable a PWM channel, the programming sequence below should be observed.

●

The ENx of the PWMCS register should be kept in ‘0’. By default, it has a value of ‘0’.

●

Loads the instructions into the PWM channel x by writing the corresponding PWMICx.

●

The PWM channel x has a 64-word depth (16-bit width). Any instructions of size less

than or equal to 64 words can be loaded into the channel. Any attempt to load beyond

64 words will result in internal address pointer to roll-over (0x1f

◊ 0x00) and the excess

instructions to be over-written into the first address location of the channel and

onwards.

●

After the instructions are loaded in, then, the PWM channel x can be enabled by setting

a ‘1’ to the ENx bit.

●

Enables the corresponding interrupt mask bit to allow interruption to the host.

STMPE2401 数据表(PDF) 39 Page - STMicroelectronics