DSPIC30F3011-30I/PT Microchip Technology Inc., DSPIC30F3011-30I/PT Datasheet - Page 49

• Manufacturer Part Number: DSPIC30F3011-30I/PT
• Description: 16 BIT MCU/DSP 44LD 30MIPS 24 KB FLASH
• Manufacturer: Microchip Technology Inc.
• Type: DSPr

Specifications of DSPIC30F3011-30I/PT

• A/d Inputs: 9-Channels, 10-Bit
• Cpu Speed: 30 MIPS
• Eeprom Memory: 1K Bytes
• Input Output: 30
• Interface: I2C/SPI/UART, USART
• Ios: 30
• Memory Type: Flash
• Number Of Bits: 16
• Package Type: 44-pin TQFP
• Programmable Memory: 24K Bytes
• Ram Size: 1K Bytes
• Timers: 5-16-bit, 2-32-bit
• Voltage, Range: 2.5-5.5
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

4.4.2
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 will
operate with modulo addressing. If XWM = 15, X RAGU
and X WAGU modulo addressing are disabled. Simi-
larly, if YWM = 15, Y AGU modulo addressing is dis-
abled.
FIGURE 4-1:
 2004 Microchip Technology Inc.
Note:
Byte
Address
0x1100
0x1163
W ADDRESS REGISTER
SELECTION
The XMODSRT and XMODEND registers,
and the XWM register selection, are
shared between X RAGU and X WAGU.
Start Addr = 0x1100
End Addr = 0x1163
Length = 0x0032 words
INCREMENTING BUFFER MODULO ADDRESSING OPERATION EXAMPLE
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
DO
MOV
AGAIN: INC
Preliminary
#0x1100,W0
W0, XMODSRT
#0x1163,W0
W0,MODEND
#0x8001,W0
W0,MODCON
#0x0000,W0
#0x1110,W1
AGAIN,#0x31
W0, [W1++]
W0,W0
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
dsPIC30F
DS70082G-page 47