STLED316S

Key-scanning and display timing

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Key-scanning and display timing

During the first cycle, the 16 channels are used for the keyscan. The keyscan duration is

made up of 64 µs. The second cycle is used for the display of the LED (discrete). The

number of cycles will increase or decrease depending upon the user configuration.

By default, the configuration is made up of 4 cycles. If any data is written to the discrete

This is a continuous operation. During the normal operation, the user cannot control or stop

the timing generation.

One cycle of key scanning consists of one frame, and data of 8 x 2 matrices are stored in

the RAM.