Let's say.
Assume that you run 1 digit per 1ms, 8 digits in serial. You need at least 5 bits pwm. so every 1ms / 32 = 30us, you send 8 bytes, -> 2M+ bps.
That requires a 2x buffered spi module.
Let's say.
Assume that you run 1 digit per 1ms, 8 digits in serial. You need at least 5 bits pwm. so every 1ms / 32 = 30us, you send 8 bytes, -> 2M+ bps.
That requires a 2x buffered spi module.