Datasheet

© 2005 Microchip Technology Inc. DS70043F-page 63
dsPIC30F
APPENDIX A: DEVICE I/O PINOUTS
AND FUNCTIONS
FOR GENERAL
PURPOSE AND
SENSOR FAMILY
Table A-1 provides a brief description of device I/O
pinouts and functions that can be multiplexed to a port
pin. Multiple functions may exist on one port pin. When
multiplexing occurs, the peripheral module’s functional
requirements may force an override of the data
direction of the port pin.
TABLE A-1: PINOUT I/O DESCRIPTIONS
Pin Name
Pin
Type
Input Buffer
Type
Description
AN0-AN15 I Analog Analog input channels.
AN0 and AN1 are also used for device programming data and clock
inputs, respectively.
AV
DD P P Positive supply for Analog module.
AV
SS P P Ground reference for Analog module.
CLKI
CLKO
I
O
ST/CMOS
—
External clock source input. Always associated with OSC1 pin
function.
Oscillator crystal output. Connects to crystal or resonator in Crystal
Oscillator mode. Optionally functions as CLKO in RC and EC modes.
Always associated with OSC2 pin function.
CN0-CN23 I ST Input change notification inputs. Can be software programmed for
internal weak pull-ups on all inputs.
COFS
CSCK
CSDI
CSDO
I/O
I/O
I
O
ST
ST
ST
—
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
C2RX
C2TX
I
O
I
O
ST
—
ST
—
CAN1 bus receive pin.
CAN1 bus transmit pin.
CAN2 bus receive pin.
CAN2 bus transmit pin.
EMUD
EMUC
EMUD1
EMUC1
EMUD2
EMUC2
EMUD3
EMUC3
I/O
I
I/O
I
I/O
I
I/O
I
ST
ST
ST
ST
ST
ST
ST
ST
Primary data I/O pin for ICD Communication Channel.
Primary clock input pin for ICD Communication Channel.
Alternate 1 data I/O pin for ICD Communication Channel.
Alternate 1 clock input pin for ICD Communication Channel.
Alternate 2 data I/O pin for ICD Communication Channel.
Alternate 2 clock input pin for ICD Communication Channel.
Alternate 3 data I/O pin for ICD Communication Channel.
Alternate 3 clock input pin for ICD Communication Channel.
IC1-IC8 I ST Capture inputs 1 through 8.
INT0
INT1
INT2
INT3
INT4
I
I
I
I
I
ST
ST
ST
ST
ST
External interrupt 0.
External interrupt 1.
External interrupt 2.
External interrupt 3.
External interrupt 4.
LVDIN I Analog Low Voltage Detect input.
MCLR
I/P ST Master Clear (Reset) input or programming voltage input. This pin is
an active low Reset to the device.
OCFA
OCFB
OC1-OC8
I
I
O
ST
ST
—
Compare Fault A input (for Compare channels 1, 2, 3 and 4).
Compare Fault B input (for Compare channels 5, 6, 7 and 8).
Compare outputs 1 through 8.
OSC1
OSC2
I
I/O
ST/CMOS
—
Oscillator crystal input. ST buffer when configured in RC mode;
CMOS otherwise.
Oscillator crystal output. Connects to crystal or resonator in Crystal
Oscillator mode. Optionally functions as CLKO in RC and EC modes.
Legend: CMOS = CMOS compatible input or output Analog = Analog input
ST = Schmitt Trigger input with CMOS levels O = Output I = Input P = Power