
MPC560xB Controller Board User’s Guide, Rev. 0
Interface Description
Freescale
16
3.12
Header J307
Header J307 allows control signals monitoring of the MC33937A, see
Table 18
.
Table 18. J307 Signal Description
3.13
Header J802
Header J802 is usable for external measurement and monitoring of UNI3 signals, important for the motor
control application, see
Table 19
.
Table 19. J802 Signal Description
10
ANA9
Standard channel (ADC0)
Analog input
11
ANA10
Standard channel (ADC0)
Analog input
12
NC
Not connected
Analog input
13
GNDA
Ground
–
14
+5VA
+5V analogue supply voltage
–
Interface Pin
Signal Name
MCU Signal
Description
Direction
1
MC33937_EN
PA[14]
MC33937 Device Enable
Digital output
2
MC33937_/RST
PF[10]
MC33937 Device Reset
Digital output
3
MC33937_OC
PF[11]
MC33937 Overcurrent indication
Digital input
4
MC33937_INT
PF[13]
MC33937 Interrupt
Digital input
5
MC33937_SCK
DSPI[4]_SCK
MC33937 Serial Peripheral Interface Clock
Digital output
6
MC33937_SIN
DSPI[4]_SIN
MC33937 Serial Peripheral Interface Input
Digital output
7
MC33937_SOUT
DSPI[4]_SOUT
MC33937 Serial Peripheral Interface Output
Digital input
8
MC33937_CS
DSPI[4]_CS
MC33937 Serial Peripheral Interface Chip Select
Digital output
Interface Pin
Signal Name
MCU Signal
Description
Direction
1
BEMFB
—
Phase B Back-EMF voltage
2
BEMFC
—
Phase C Back-EMF voltage
3
BEMFA
—
Phase A Back-EMF voltage
4
PFCZC
—
Power factor correction Zero-cross
5
PFC
—
Power factor correction PWM
6
BRAKE
—
DC-bus brake control signal
7
PFCEN
—
Power factor correction enable signal
8
SERIAL
—
Serial interface
9
TEMP
—
MC33937A Temperature
Interface Pin
Signal Name
MCU Signal
Description
Direction