Datasheet

STA559BW Register description
Doc ID 18190 Rev 1 37/67
2.1 channels, two half-bridges + one full-bridge (OCFG = 01)
Mapping:
z FFX1A -> OUT1A
z FFX2A -> OUT1B
z FFX3A -> OUT2A
z FFX3B -> OUT2B
z FFX1A -> OUT3A
z FFX1B -> OUT3B
z FFX2A -> OUT4A
z FFX2B -> OUT4B
Modulation:
z FFX1A/1B configured as binary
z FFX2A/2B configured as binary
z FFX3A/3B configured as binary
z FFX4A/4B configured as binary
In this configuration, channel 3 has full control (volume, EQ, etc…). On OUT3/OUT4
channels the channel 1 and channel 2 PWM are replicated.
In this configuration the PWM slot phase is the following as shown in Figure 15.
Figure 15. 2.1 channels (OCFG = 01) PWM slots
OUT1A
OUT2A
OUT2B
OUT3A
OUT3B
OUT1B
OUT4A
OUT4B
OUT1A
OUT2A
OUT2B
OUT3A
OUT3B
OUT1B
OUT4A
OUT4B
OUT1A
OUT2A
OUT2B
OUT3A
OUT3B
OUT1B
OUT4A
OUT4B
OUT1A
OUT2A
OUT2B
OUT3A
OUT3B
OUT1B
OUT1A
OUT2A
OUT2B
OUT3A
OUT3B
OUT1B
OUT4A
OUT4B
OUT1A
OUT2A
OUT2B
OUT3A
OUT3B
OUT1B
OUT4A
OUT4B