DSPIC30F6015-20E/PT Microchip Technology, DSPIC30F6015-20E/PT Datasheet - Page 38
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DSPIC30F6015-20E/PT
Manufacturer Part Number
DSPIC30F6015-20E/PT
Description
IC DSPIC MCU/DSP 144K 64TQFP
Manufacturer
Microchip Technology
Series
dsPIC™ 30Fr
Datasheets
1.DSPIC30F2011-20ISO.pdf
(66 pages)
2.DSPIC30F2011-20IP.pdf
(26 pages)
3.DSPIC30F6015-30IPT.pdf
(232 pages)
4.DSPIC30F6015-30IPT.pdf
(14 pages)
5.DSPIC30F6015-30IPT.pdf
(12 pages)
6.DSPIC30F6015-30IPT.pdf
(18 pages)
Specifications of DSPIC30F6015-20E/PT
Core Processor
dsPIC
Core Size
16-Bit
Speed
20 MIPS
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, Motor Control PWM, QEI, POR, PWM, WDT
Number Of I /o
52
Program Memory Size
144KB (48K x 24)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.5 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
64-TFQFP
Core Frequency
40MHz
Core Supply Voltage
5.5V
Embedded Interface Type
I2C, SPI, UART
No. Of I/o's
52
Flash Memory Size
144KB
Supply Voltage Range
2.5V To 5.5V
Package
64TQFP
Device Core
dsPIC
Family Name
dsPIC30
Maximum Speed
20 MHz
Operating Supply Voltage
3.3|5 V
Data Bus Width
16 Bit
Number Of Programmable I/os
52
Interface Type
CAN/I2C/SPI/UART
On-chip Adc
16-chx10-bit
Number Of Timers
5
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPAC164315 - MODULE SKT MPLAB PM3 44TQFPAC30F008 - MODULE SKT FOR DSPIC30F 64TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DSPIC30F6015-20E/PT
Manufacturer:
MICROCHIP
Quantity:
1 143
Company:
Part Number:
DSPIC30F6015-20E/PT
Manufacturer:
Microchip Technology
Quantity:
135
Company:
Part Number:
DSPIC30F6015-20E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
DSPIC30F6015-20E/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
dsPIC30F6010A/6015
4.2.3
Modulo Addressing can be applied to the Effective
Address (EA) calculation associated with any W
register. It is important to realize that the address
boundaries check for addresses less than or greater
than the upper (for incrementing buffers) and lower (for
decrementing buffers) boundary addresses (not just
equal to). Address changes may, therefore, jump
beyond boundaries and still be adjusted correctly.
4.3
Bit-Reversed Addressing is intended to simplify data
re-ordering for radix-2 FFT algorithms. It is supported
by the X AGU for data writes only.
The modifier, which may be a constant value or register
contents, is regarded as having its bit order reversed.
The address source and destination are kept in normal
order. Thus, the only operand requiring reversal is the
modifier.
4.3.1
Bit-Reversed Addressing is enabled when:
1.
2.
3.
FIGURE 4-2:
DS70150D-page 38
Note:
BWM (W register selection) in the MODCON
register is any value other than 15 (the stack can
not be accessed using Bit-Reversed Addressing)
and
the BREN bit is set in the XBREV register and
the addressing mode used is Register Indirect
with Pre-Increment or Post-Increment.
b15 b14 b13 b12
b15 b14 b13 b12
Bit-Reversed Addressing
MODULO ADDRESSING
APPLICABILITY
The modulo corrected Effective Address is
written back to the register only when
Pre-Modify or Post-Modify Addressing
mode is used to compute the Effective
Address.
(e.g., [W7+W2]) is used, Modulo Address
correction is performed, but the contents
of the register remains unchanged.
BIT-REVERSED ADDRESSING
IMPLEMENTATION
BIT-REVERSED ADDRESS EXAMPLE
b11 b10 b9 b8
When
b11 b10 b9 b8
an
address
b7 b6 b5 b4
b7 b6 b5 b1
offset
Pivot Point
b3 b2 b1
b2 b3 b4
Sequential Address
Bit-Reversed Address
If the length of a Bit-Reversed buffer is M = 2
then the last ‘N’ bits of the data buffer start address
must be zeros.
XB<14:0> is the Bit-Reversed Address modifier or
‘pivot point’ which is typically a constant. In the case of
an FFT computation, its value is equal to half of the FFT
data buffer size.
When enabled, Bit-Reversed Addressing will only be
executed for Register Indirect with Pre-Increment or
Post-Increment Addressing and word-sized data writes.
It will not function for any other addressing mode or for
byte-sized data, and normal addresses will be generated
instead. When Bit-Reversed Addressing is active, the W
Address Pointer will always be added to the address
modifier (XB) and the offset associated with the Register
Indirect Addressing mode will be ignored. In addition, as
word-sized data is a requirement, the LSb of the EA is
ignored (and always clear).
If Bit-Reversed Addressing has already been enabled
by setting the BREN (XBREV<15>) bit, then a write to
the XBREV register should not be immediately followed
by an indirect read operation using the W register that
has been designated as the Bit-Reversed Pointer.
Note:
Note:
XB = 0x0008 for a 16-word Bit-Reversed Buffer
0
0
All Bit-Reversed EA calculations assume
word-sized data (LSb of every EA is
always clear). The XB value is scaled
accordingly to generate compatible (byte)
addresses.
Modulo Addressing and Bit-Reversed
Addressing
together. In the event that the user
attempts
Addressing will assume priority when
active for the X WAGU, and X WAGU
Modulo Addressing will be disabled.
However, Modulo Addressing will continue
to function in the X RAGU.
Bit Locations Swapped Left-to-Right
Around Center of Binary Value
to
© 2008 Microchip Technology Inc.
should
do
this,
not
be
Bit-Reversed
enabled
N
bytes,