DSPIC30F4011-30I/PT Microchip Technology, DSPIC30F4011-30I/PT Datasheet - Page 87

• Manufacturer Part Number: DSPIC30F4011-30I/PT
• Description: IC DSPIC MCU/DSP 48K 44TQFP
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F4011-30I/PT

• Program Memory Type: FLASH
• Program Memory Size: 48KB (16K x 24)
• Package / Case: 44-TQFP, 44-VQFP
• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 30 MIPs
• Connectivity: CAN, 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: 2K 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
• Data Bus Width: 16 bit
• Processor Series: DSPIC30F
• Core: dsPIC
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Data Rom Size: 1024 B
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE4000, DM240002, DM300018, DM330011
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT44PT3 - SOCKET TRAN ICE 44MQFP/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: DSPIC30F401130IPT

14.0
This section describes the Quadrature Encoder Inter-
face (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: In dsPIC30F4011/4012, the UPDN pin is not available. Up/Down logic bit can still be polled by software.
QUADRATURE ENCODER
INTERFACE (QEI) MODULE
Synchronize
Sleep Input
Det
UPDN_SRC
QUADRATURE ENCODER INTERFACE BLOCK DIAGRAM
Programmable
Programmable
Programmable
1
0
Digital Filter
Digital Filter
Digital Filter
QEICON<11>
3
Up/Down
T
QEIM<2:0>
CY
Quadrature
Encoder
Interface Logic
TQCS
1
0
QEIM<2:0>
Mode Select
Preliminary
3
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
dsPIC30F4011/4012
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>).
DS70135C-page 85
QEIIF
Event
Flag