Datasheet
© 2009-2012 Microchip Technology Inc. Preliminary DS70616F-page 27
dsPIC33EPXXX(GP/MC/MU)806/810/814 and PIC24EPXXX(GP/GU)810/814
SCK4
SDI4
SDO4
SS4
I/O
I
O
I/O
ST
ST
—
ST
Yes
Yes
Yes
Yes
Synchronous serial clock input/output for SPI4.
SPI4 data in.
SPI4 data out.
SPI4 slave synchronization or frame pulse I/O.
SCL1
(5)
SDA1
(5)
ASCL1
(5)
ASDA1
(5)
I/O
I/O
I/O
I/O
ST
ST
ST
ST
No
No
No
No
Synchronous serial clock input/output for I2C1.
Synchronous serial data input/output for I2C1.
Alternate synchronous serial clock input/output for I2C1.
Alternate synchronous serial data input/output for I2C1.
SCL2
(5)
SDA2
(5)
ASCL2
(5)
ASDA2
(5)
I/O
I/O
I/O
I/O
ST
ST
ST
ST
No
No
No
No
Synchronous serial clock input/output for I2C2.
Synchronous serial data input/output for I2C2.
Alternate synchronous serial clock input/output for I2C2.
Alternate synchronous serial data input/output for I2C2.
TMS
TCK
TDI
TDO
I
I
I
O
ST
ST
ST
—
No
No
No
No
JTAG Test mode select pin.
JTAG test clock input pin.
JTAG test data input pin.
JTAG test data output pin.
INDX1
(1)
HOME1
(1)
QEA1
(1)
QEB1
(1)
CNTCMP1
(1)
I
I
I
I
O
ST
ST
ST
ST
—
Yes
Yes
Yes
Yes
Yes
Quadrature Encoder Index1 Pulse input.
Quadrature Encoder Home1 Pulse input.
Quadrature Encoder Phase A input in QEI1 mode. Auxiliary Timer
External Clock input in Timer mode.
Quadrature Encoder Phase A input in QEI1 mode. Auxiliary Timer
External Gate input in Timer mode.
Quadrature Encoder Compare Output 1.
INDX2
(1)
HOME2
(1)
QEA2
(1)
QEB2
(1)
CNTCMP2
(1)
I
I
I
I
O
ST
ST
ST
ST
—
Yes
Yes
Yes
Yes
Yes
Quadrature Encoder Index2 Pulse input.
Quadrature Encoder Home2 Pulse input.
Quadrature Encoder Phase A input in QEI2 mode. Auxiliary Timer
External Clock input in Timer mode.
Quadrature Encoder Phase B input in QEI2 mode. Auxiliary Timer
External Gate input in Timer mode.
Quadrature Encoder Compare Output 2.
COFS
CSCK
CSDI
CSDO
I/O
I/O
I
O
ST
ST
ST
—
Yes
Yes
Yes
Yes
Data Converter Interface frame synchronization pin.
Data Converter Interface serial clock input/output pin.
Data Converter Interface serial data input pin.
Data Converter Interface serial data output pin.
C1RX
C1TX
I
O
ST
—
Yes
Yes
ECAN1 bus receive pin.
ECAN1 bus transmit pin.
C2RX
C2TX
I
O
ST
—
Yes
Yes
ECAN2 bus receive pin.
ECAN2 bus transmit pin.
RTCC O — No Real-Time Clock Alarm Output.
CV
REF O Analog No Comparator Voltage Reference Output.
TABLE 1-1: PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin
Type
Buffer
Type
PPS Description
Legend: CMOS = CMOS compatible input or output Analog = Analog input P = Power
ST = Schmitt Trigger input with CMOS levels O = Output I = Input
PPS = Peripheral Pin Select TTL = TTL input buffer
Note 1: This pin is available on dsPIC33EPXXX(MC/MU)806/810/814 devices only.
2: AV
DD must be connected at all times.
3: These pins are input only on dsPIC33EPXXXMU8XX and PIC24EPXXXGU8XX devices.
4: These pins are only available on dsPIC33EPXXXMU8XX and PIC24EPXXXGU8XX devices.
5: The availability of I
2
C interfaces varies by device. Refer to the “Pin Diagrams” section for availability.
Selection (SDAx/ SCLx or ASDAx/ASCLx) is made using the device Configuration bits ALTI2C1 and
ALTI2C2 (FPOR<5:4>). See Section 29.0 “Special Features” for more information.
6: Analog functionality is activated by enabling the USB module and is not controlled by the ANSEL register.