Pin Functions Of The Dspic Dsc - Microchip Technology dsPIC33CK User Manual

2.4

PIN FUNCTIONS OF THE dsPIC DSC

The on-board dsPIC33CK256MP508 device (see U9 in
of various features of the Motor Control Board through its peripherals and CPU
capability. Pin functions of the dsPIC DSC are grouped according to their functionality
and presented in
®
TABLE 2-14: dsPIC
®
dsPIC DSC
Signal
Pin #
dsPIC DSC Configuration – Supply, Reset, Clock and Programming
+3.3V 12, 31, 51, 71
DGND 11, 32, 50, 70
+3.3VA 25
AGND 26
OSCI 34
OSCO 35
MCLR 9
PGD 55
PGC 56
dsPIC DSC Internal Amplifier Connections for Current Amplification
SHUNT_IA_P 20
SHUNT_IA_N 18
IA 16
SHUNT_IB_P 45
SHUNT_IB_N 43
IB 41
SHUNT_IBUS_P 29
SHUNT_IBUS_N 28
I 23
BUS
 2020 Microchip Technology Inc.
Table 2-14.
DSC PIN FUNCTIONS
dsPIC DSC Pin Function
V
DD
V
SS
AV
DD
AV
SS
OSCI/CLKI/AN5/RP32/
PMD10/PMA10/RB0
OSCO/CLKO/AN6/RP33/
PMA1/PMALH/PSA1/RB1
MCLR
PGD3/RP37/SDA2/PMA14/
PMCS1/PSCS/RB5
PGC3/RP38/SCL2/RB6
OA1IN+/AN9/PMA6/RA2
OA1IN-/ANA1/RA1
OA1OUT/AN0/CMP1A/
IBIAS0/RA0
PGC2/OA2IN+/RP36/RB4
PGD2/OA2IN-/AN8/RP35/
RB3
OA2OUT/AN1/AN7/ANA0/
CMP1D/CMP2D/CMP3D/
RP34/SCL3/INT0/RB2
OA3IN+/AN14/CMP2B/
ISRC1/RP50/PMD13/
PMA13/RC2
OA3IN-/AN13/CMP1B/
ISRC0/RP49/PMA7/RC1
OA3OUT/AN4/CMP3B/
IBIAS3/RA4
Board Interface Description
Figure
dsPIC DSC
Peripheral
Supply +3.3V digital supply to dsPIC DSC
Digital ground
+3.3V analog supply to dsPIC DSC
Analog Ground
Oscillator with PLL Connects to crystal (X2) on the board
Reset Connects to a push button (SW4), ICSP™
header (J10) and PKOB circuit
In-Circuit Serial Connects to ICSP header (J10) and
Programming™ PKOB programming/debugging tool
(ICSP™) or
In-Circuit Debugger
Operational Differential current feedback from shunt
Amplifier 1 resistor Rsh1 connects to noninverting and
(Op Amp #1) and inverting inputs of Op Amp #1 through input
Dedicated ADC resistors
Core #0
Op Amp #1 output, which is amplified Phase A
current. For the output to be available, config-
ure and enable Op Amp #1, populate the
resistor R125 (0R) in the amplifier feedback
and remove R121 if populated
Operational Differential current feedback from shunt
Amplifier 2 resistor Rsh2 connects to noninverting and
(Op Amp #2) and inverting inputs of Op Amp #2 through input
Dedicated ADC resistors
Core #1
Op Amp #2 output, which is amplified Phase B
current. For the output to be available, config-
ure and enable Op Amp #2, populate the
resistor R133 (0R) in the amplifier feedback
and remove R129 if populated
Operational Differential current feedback from shunt
Amplifier 3 resistor Rsh4 connects to noninverting and
(Op Amp #3) and inverting inputs of Op Amp #3 through input
Shared ADC Core resistors
Op Amp #3 output, which is amplified bus
current. For the output to be available, config-
ure and enable Op Amp #3, populate the
resistor R141 (0R) in the amplifier feedback
and remove R137 if populated
A-2) enables the control
Remarks
DS50002927A-page 25