Predrive Descriptions - NXP Semiconductors MC9S08SU16 Reference Manual

From PWM Channel 0
From PWM Channel 1
OVP22V
OVP24V

25.7.3.2 Predrive descriptions

25.7.4 GCMP functional description
The GDU Comparator can be used to compare two analog input voltages applied to INP
and INM. The analog comparator output (CMPO) is high when the non-inverting input is
greater than the inverting input, and is low when the non-inverting input is less than the
inverting input. This signal can be selectively inverted by setting CR1[INV] = 1.
The SCR[IER], SCR[IEF] bits are used to select the condition which will cause the
comparator module to assert an interrupt to the processor. SCR[CFF] is set on a falling
edge and SCR[CFR] is set on rising edge of the comparator output. The (optionally
filtered) comparator output can be read directly through the SCR[COUT] bit.
NXP Semiconductors
VDD
Level
Shift
Clamp
Regulator
CLAMPEN
5 V
Regulator
+
–
Vref
OVPIE
OVPEN
+
–
Vref
Figure 25-4. Predrive diagram
MC9S08SU16 Reference Manual, Rev. 5, 4/2017
226 kΩ
High Side
PreDriver
HSDE
HSDS0
HSDS1
Low Side
PreDriver
40 kΩ
LSDS0
PDE
LSDS1
Chapter 25 Gate Drive Unit (GDU)
PWM0
PMOS
VCLAMP
PWM1
NMOS
VSS
465