DSPIC30F4012-20E/SO Microchip Technology, DSPIC30F4012-20E/SO Datasheet - Page 39
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DSPIC30F4012-20E/SO
Manufacturer Part Number
DSPIC30F4012-20E/SO
Description
IC,DSP,16-BIT,CMOS,SOP,28PIN,PLASTIC
Manufacturer
Microchip Technology
Series
dsPIC™ 30Fr
Datasheets
1.DSPIC30F2011-20ISO.pdf
(66 pages)
2.DSPIC30F4012-30ISO.pdf
(238 pages)
3.DSPIC30F4012-30ISO.pdf
(18 pages)
4.DSPIC30F4012-30ISO.pdf
(6 pages)
5.DSPIC30F4012-30ISO.pdf
(16 pages)
6.DSPIC30F4012-30ISO.pdf
(22 pages)
Specifications of DSPIC30F4012-20E/SO
Rohs Compliant
YES
Core Processor
dsPIC
Core Size
16-Bit
Speed
20 MIPS
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, Motor Control PWM, QEI, POR, PWM, WDT
Number Of I /o
20
Program Memory Size
48KB (16K x 24)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.5 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
DSPIC30F401220ESO
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DSPIC30F4012-20E/SO
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- DSPIC30F2011-20ISO PDF datasheet
- DSPIC30F4012-30ISO PDF datasheet #2
- DSPIC30F4012-30ISO PDF datasheet #3
- DSPIC30F4012-30ISO PDF datasheet #4
- DSPIC30F4012-30ISO PDF datasheet #5
- DSPIC30F4012-30ISO PDF datasheet #6
- Current page: 39 of 238
- Download datasheet (4Mb)
4.2.1
The Modulo Addressing scheme requires that a start and
end address be specified and loaded into the 16-bit Mod-
ulo Buffer Address registers: XMODSRT, XMODEND,
YMODSRT and YMODEND (see
The length of a circular buffer is not directly specified. It
is
corresponding start and end addresses. The maximum
possible length of the circular buffer is 32K words
(64 Kbytes).
FIGURE 4-1:
© 2010 Microchip Technology Inc.
Note:
determined
Address
0x1100
0x1163
Byte
START AND END ADDRESS
Y space Modulo Addressing EA calcula-
tions assume word-sized data (LSb of
every EA is always clear).
Start Addr = 0x1100
End Addr = 0x1163
Length = 0x0032 words
by
the
MODULO ADDRESSING OPERATION EXAMPLE
difference
Table
3-3).
between
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
DO
MOV
AGAIN: INC W0,W0
the
#0x1100,W0
W0, XMODSRT
#0x1163,W0
W0,MODEND
#0x8001,W0
W0,MODCON
#0x0000,W0
#0x1110,W1
AGAIN,#0x31
W0, [W1++]
4.2.2
The Modulo and Bit-Reversed Addressing Control reg-
ister, MODCON<15:0>, contains enable flags as well
as a W register field to specify the W Address registers.
The XWM and YWM fields select which registers oper-
ate with Modulo Addressing. If XWM = 15, X RAGU and
X WAGU Modulo Addressing are disabled. Similarly, if
YWM = 15, Y AGU Modulo Addressing is disabled.
The X Address Space Pointer W register (XWM), to
which Modulo Addressing is to be applied, is stored in
MODCON<3:0> (see
enabled for X data space when XWM is set to any value
other than 15 and the XMODEN bit is set at
MODCON<15>.
The Y Address Space Pointer W register (YWM), to
which Modulo Addressing is to be applied, is stored in
MODCON<7:4>. Modulo Addressing is enabled for Y
data space when YWM is set to any value other than 15
and the YMODEN bit is set at MODCON<14>.
dsPIC30F4011/4012
;set modulo start address
;set modulo end address
;enable W1, X AGU for modulo
;W0 holds buffer fill value
;point W1 to buffer
;fill the 50 buffer locations
;fill the next location
;increment the fill value
W ADDRESS REGISTER
SELECTION
Table
3-3). Modulo Addressing is
DS70135G-page 39
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