Datasheet

L6460 Power bridges
Doc ID 17713 Rev 1 57/139
In Figure 15 is reported a block diagram representing the possible PWM choices for each
L6460 half bridges. The figure is related only to bridges 1 and 2, but it could be assumed to
be valid also for bridges 3 and 4, with few differences due to different possible configurations
of these last drivers.
Table 14. PWM selection truth table for bridge 1 or 2
MtrXSelPWMSideY [1] MtrXSelPWMSideY [0] Selected PWM
(1)
1. In this table X stands for 1 or 2, Y stands for A or B.
00
MotorXPWM (Configurable by means of MtrXCfg
register).
01
AuxXPWM (Configurable by means of
AuxPwmXCtrl register).
1 0 ExtPWM1 (from GPIO 9 input)
1 1 ExtPWM2 (from GPIO 10 input)
Table 15. PWM selection truth table for bridge 3 or 4
MtrXSelPWMSideY [1] MtrXSelPWMSideY [0] Selected PWM
(1)
1. In this table X stands for 3 or 4, Y stands for A or B.
00
MotorXPWM (Configurable by means of
MtrXCfg register).
01
AuxXPWM (Configurable by means of
AuxPwmXCtrl register).
1 0 ExtPWM3 (from GPIO 2 input)
1 1 ExtPWM4 (from GPIO 11 input)