DSPIC30F6015-30I/PT Microchip Technology Inc., DSPIC30F6015-30I/PT Datasheet - Page 37
DSPIC30F6015-30I/PT
Manufacturer Part Number
DSPIC30F6015-30I/PT
Description
16 BIT MCU/DSP 64LD 30MIPS 144 KB FLASH
Manufacturer
Microchip Technology Inc.
Type
DSPr
Datasheet
1.DSPIC30F6015-30IPT.pdf
(236 pages)
Specifications of DSPIC30F6015-30I/PT
A/d Inputs
16-Channels, 10-Bit
Cpu Speed
30 MIPS
Eeprom Memory
4K Bytes
Input Output
52
Interface
CAN, I2C, SPI, UART/USART
Ios
52
Memory Type
Flash
Number Of Bits
16
Package Type
64-pin TQFP
Programmable Memory
144K Bytes
Ram Size
8K Bytes
Timers
5-16-bit, 2-32-bit
Voltage, Range
2.5-5.5
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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4.2.1
The Modulo Addressing scheme requires that a
starting and an ending address be specified and
loaded into the 16-bit Modulo Buffer Address registers:
XMODSRT, XMODEND, YMODSRT and YMODEND
(see Table 3-3).
The length of a circular buffer is not directly specified.
It is determined by the difference between the
corresponding start and end addresses. The maximum
possible length of the circular buffer is 32K words
(64 Kbytes).
FIGURE 4-1:
© 2006 Microchip Technology Inc.
Note:
Byte
Address
0x1100
0x1163
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
MODULO ADDRESSING OPERATION EXAMPLE
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
DO
MOV
AGAIN: INC
#0x1100,W0
W0, XMODSRT
#0x1163,W0
W0,MODEND
#0x8001,W0
W0,MODCON
#0x0000,W0
#0x1110,W1
AGAIN,#0x31
W0, [W1++]
W0,W0
dsPIC30F6010A/6015
4.2.2
The Modulo and Bit-Reversed Addressing Control
register, 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 will operate 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 Table 3-3). Modulo Addressing is
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>.
;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
DS70150B-page 35
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