DSPIC30F2010-30I/SPG Microchip Technology, DSPIC30F2010-30I/SPG Datasheet - Page 68

• Manufacturer Part Number: DSPIC30F2010-30I/SPG
• Description: 16BIT 30MIPS DSPIC, 30F2010, DIP28
• Manufacturer: Microchip Technology
• Series: DsPIC30Fr

Specifications of DSPIC30F2010-30I/SPG

• Core Frequency: 30MHz
• Embedded Interface Type: I2C, SPI, UART
• No. Of I/o's: 20
• Flash Memory Size: 12KB
• Supply Voltage Range: 2.5V To 5.5V
• Operating Temperature Range: -40°C To
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

dsPIC30F
A parallel I/O (PIO) port that shares a pin with a periph-
eral is, in general, subservient to the peripheral. The
peripheral’s output buffer data and control signals are
provided to a pair of multiplexers. The multiplexers
select whether the peripheral or the associated port
has ownership of the output data and control signals of
the I/O pad cell. Figure 8-2 shows how ports are shared
with other peripherals, and the associated I/O cell (pad)
to which they are connected. Table 8-2 through
Table 8-7 show the formats of the registers for the
shared ports, PORTB through PORTG.
FIGURE 8-2:
DS70082E-page 66
Note:
The actual bits in use vary between
devices.
Data Bus
WR TRIS
WR LAT +
WR Port
BLOCK DIAGRAM OF A SHARED PORT STRUCTURE
Read Port
Peripheral Output Enable
Peripheral Output Data
Peripheral Input Data
Peripheral Module Enable
PIO Module
Peripheral Module
Read TRIS
Read LAT
TRIS Latch
Data Latch
D
D
CK
CK
Advance Information
Q
Q
8.2
The use of the ADPCFG and TRIS registers control the
operation of the A/D 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.
When reading the PORT register, all pins configured as
analog input channel 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
1
0
0
Configuring Analog Port Pins
Output Data
Output Enable
Output Multiplexers
Input Data
I/O Cell
 2004 Microchip Technology Inc.
I/O Pad
OH
or V
OL
) will be