DSPIC30F6011A MICROCHIP [Microchip Technology], DSPIC30F6011A Datasheet - Page 66

• Manufacturer Part Number: DSPIC30F6011A
• Description: High-Performance Digital Signal Controllers
• Manufacturer: MICROCHIP [Microchip Technology]

dsPIC30F6011A/6012A/6013A/6014A
8.2
The use of the ADPCFG and TRIS registers control the
operation of the ADC port pins. The port pins that are
desired as analog inputs must have their correspond-
ing TRIS bit set (input). If the TRIS bit is cleared (out-
put), the digital output level (V
converted.
FIGURE 8-2:
DS70143B-page 64
Configuring Analog Port Pins
Data Bus
WR TRIS
WR LAT +
WR Port
BLOCK DIAGRAM OF A SHARED PORT STRUCTURE
Read Port
Peripheral Input Data
Peripheral Module Enable
Peripheral Output Enable
Peripheral Output Data
Read TRIS
Peripheral Module
PIO Module
OH
Read LAT
TRIS Latch
Data Latch
D
D
or V
CK
CK
OL
Q
Q
) will be
Preliminary
When reading the Port register, all pins configured as
analog input channels will read as cleared (a low level).
Pins configured as digital inputs will not convert an ana-
log input. Analog levels on any pin that is defined as a
digital input (including the ANx pins) may cause the
input buffer to consume current that exceeds the
device specifications.
1
0
1
0
Output Enable
Output Data
Output Multiplexers
Input Data
I/O Cell
© 2005 Microchip Technology Inc.
I/O Pad