DSPIC30F3011-30I/P Microchip Technology, DSPIC30F3011-30I/P Datasheet - Page 89

• Manufacturer Part Number: DSPIC30F3011-30I/P
• Description: IC DSPIC MCU/DSP 24K 40DIP
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F3011-30I/P

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 30 MIPs
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, Motor Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 30
• 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 9x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Core Frequency: 40MHz
• Core Supply Voltage: 5.5V
• Embedded Interface Type: I2C, SPI, UART
• No. Of I/o's: 30
• Flash Memory Size: 24KB
• Supply Voltage Range: 2.5V To 5.5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC30F003 - MODULE SOCKET DSPIC30F 40DIPDV164005 - KIT ICD2 SIMPLE SUIT W/USB CABLEACICE0206 - ADAPTER MPLABICE 40P 600 MIL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: DSPIC30F3011-30IP

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:
© 2008 Microchip Technology Inc.
Note:
QEA
QEB
INDX
Note 1:
QUADRATURE ENCODER
INTERFACE (QEI) MODULE
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 gen-
eral device functionality, refer to the
“dsPIC30F Family Reference Manual”
(DS70046).
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
Interface Logic
TQCS
Quadrature
Encoder
1
0
Up/Down
Mode Select
QEIM<2:0>
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
(MAXCNT)
(POSCNT)
TQCKPS<1:0>
Q
Q
1, 8, 64, 256
bits
Prescaler
2
QEIM<2:0>
Reset
Equal
(QEICON<10:8>).
DS70141E-page 87
QEIIF
Event
Flag