TWR-56F8400 User’s Manual
Page 10 of 35
GPIOE4/PWMA_2B/XB_IN2
82
D5
E4
Green
GPIOE5/PWMA_2A/XB_IN3
83
D6
E5
Yellow
GPIOE6/PWMA_3B/XB_IN4/PW
MB_2B
84
D7
E6
Green
GPIOE7/PWMA_3A/XB_IN5/PW
MB_2A
85
D8
E7
Yellow
GPIOF6/TB2/PWMA_3X/PWMB_
3X/XB_IN2
94
D9
F6
Amber
2.3.4
Motor Control Connector
The TWR-56F8400 board may be connected to a motor control board such as the APMOTOR56F8000E.
The motor control connector (J501) is on the bottom of the board to provide a convenient connection
to the motor control board.
Some of the MC56F84789 DSC pins are connected to the motor control connector. Those pins
associated with analog inputs have 100 ohm resistors in series to provide some ESD protection for the
analog inputs of the DSC. Those pins providing analog signals from the motor control board have 2200
pf caps with the resistors to provide a low pass filter. The connector pin out is shown in Table 4.
Table 4.
Motor Control Connector Pin Out
Motor Control Connector J501 Pin Out
Pin
#
MC56F84789 DSC Signal
Pin
#
MC56F84789 DSC Signal
1
P3_3V_MOTOR
2
GPIOB7/ANB7&ANC15&CMPB_IN2
(With 100 ohms in series)
3
GND
4
RESETB/ GPIOD4
(With 0 ohms in series – remove to
isolate)
5
GPIOF4/TXD1/XB_OUT8
6
GPIOA3/ANA3&VREFLA&CMPA_IN2
(With 100 ohms in series)
7
GPIOF3/SDA1/XB_OUT7
8
GND
9
GPIOE1/PWMA_0A
10
GPIOA0/ANA0&CMPA_IN3/CMPC_O
(With 100 ohm, 2200 pf low pass filter)
11
GPIOE0/PWMA_0B
12
GPIOA1/ANA1&CMPA_IN0
(With 100 ohm, 2200 pf low pass filter)
13
GPIOC3/TA0/CMPA_O/RXD0/CLKIN1
14
GPIOA2/ANA2&VREFHA&CMPA_IN1
(With 100 ohm, 2200 pf low pass filter)
15
GPIOC13/TA3/XB_IN6/EWM_OUT_B
16
GND
