DSPIC30F3011-30I/PT Microchip Technology, DSPIC30F3011-30I/PT Datasheet - Page 91

• Manufacturer Part Number: DSPIC30F3011-30I/PT
• Description: IC DSPIC MCU/DSP 24K 44TQFP
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F3011-30I/PT

• Program Memory Type: FLASH
• Program Memory Size: 24KB (8K x 24)
• Package / Case: 44-TQFP, 44-VQFP
• 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
• 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
• Product: DSCs
• Data Bus Width: 16 bit
• Processor Series: DSPIC30F
• Core: dsPIC
• Maximum Clock Frequency: 30 MHz
• Data Ram Size: 1024 B
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE4000, DM240002, DM330011, DM300018
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPAC30F006 - MODULE SKT FOR DSPIC30F 44TQFPAC164305 - MODULE SKT FOR PM3 44TQFPDV164005 - KIT ICD2 SIMPLE SUIT W/USB CABLE
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: DSPIC30F301130IPT

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:
© 2010 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
general 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
block diagram.
index pulse
dsPIC30F3010/3011
16-Bit Up/Down Counter
Max Count Register
D
CK
Comparator/
Zero Detect
(POSCNT)
(MAXCNT)
depicts the Quadrature Encoder Interface
TQCKPS<1:0>
Q
Q
1, 8, 64, 256
bits
Prescaler
2
QEIM<2:0>
Reset
Equal
(QEICON<10:8>).
DS70141F-page 91
QEIIF
Event
Flag