DSPIC30F3010T-20I/SO Microchip Technology, DSPIC30F3010T-20I/SO Datasheet - Page 87

IC DSPIC MCU/DSP 24K 28SOIC

DSPIC30F3010T-20I/SO

Manufacturer Part Number
DSPIC30F3010T-20I/SO
Description
IC DSPIC MCU/DSP 24K 28SOIC
Manufacturer
Microchip Technology
Series
dsPIC™ 30Fr

Specifications of DSPIC30F3010T-20I/SO

Core Processor
dsPIC
Core Size
16-Bit
Speed
20 MIPS
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, Motor Control PWM, QEI, POR, PWM, WDT
Number Of I /o
20
Program Memory Size
24KB (8K x 24)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.5 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
14.0
This section describes the Quadrature Encoder
Interface (QEI) module and associated operational
modes. The QEI module provides the interface to
incremental encoders for obtaining mechanical position
data.
FIGURE 14-1:
© 2005 Microchip Technology Inc.
Note: This data sheet summarizes features of this group
of dsPIC30F devices and is not intended to be a complete
reference source. For more information on the CPU,
peripherals, register descriptions and general device
functionality, refer to the dsPIC30F Family Reference
Manual (DS70046).
QEA
QEB
INDX
Note 1:
QUADRATURE ENCODER
INTERFACE (QEI) MODULE
Synchronize
Sleep Input
In dsPIC30F3010/3011, the UPDN pin is not available. Up/Down logic bit can still be polled by software.
Det
UPDN_SRC
QUADRATURE ENCODER INTERFACE BLOCK DIAGRAM
Programmable
Programmable
Programmable
0
1
Digital Filter
Digital Filter
Digital Filter
QEICON<11>
3
T
QEIM<2:0>
CY
Quadrature
Encoder
Interface Logic
TQCS
1
0
Up/Down
QEIM<2:0>
Mode Select
Preliminary
3
(1)
TQGATE
1
0
2
The operational features of the QEI include:
• Three input channels for two phase signals and
• 16-bit up/down position counter
• Count direction status
• Position Measurement (x2 and x4) mode
• Programmable digital noise filters on inputs
• Alternate 16-bit Timer/Counter mode
• Quadrature Encoder Interface interrupts
These operating modes are determined by setting the
appropriate
Figure 14-1 depicts the Quadrature Encoder Interface
block diagram.
index pulse
dsPIC30F3010/3011
16-bit Up/Down Counter
Max Count Register
D
CK
Comparator/
Zero Detect
(POSCNT)
(MAXCNT)
TQCKPS<1:0>
Q
Q
1, 8, 64, 256
bits
Prescaler
2
QEIM<2:0>
Reset
Equal
(QEICON<10:8>).
DS70141B-page 85
QEIIF
Event
Flag

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