DSPIC30F3014-20I/PT Microchip Technology, DSPIC30F3014-20I/PT Datasheet - Page 18

• Manufacturer Part Number: DSPIC30F3014-20I/PT
• Description: IC, DSC, 16BIT, 24KB 40MHZ, 5.5V, TQFP44
• Manufacturer: Microchip Technology
• Series: DsPIC30Fr

Specifications of DSPIC30F3014-20I/PT

• Core Frequency: 40MHz
• Core Supply Voltage: 5.5V
• Embedded Interface Type: I2C, SPI, UART
• No. Of I/o's: 30
• Flash Memory Size: 24KB
• Supply Voltage Range: 2.5V To 5.5V
• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 20 MIPS
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 30
• Program Memory Size: 24KB (8K 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 13x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Package: 44TQFP
• 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: 30
• Interface Type: I2C/SPI/UART
• On-chip Adc: 13-chx12-bit
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPAC30F006 - MODULE SKT FOR DSPIC30F 44TQFPAC164305 - MODULE SKT FOR PM3 44TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: DSPIC30F301420IPT

dsPIC30F3014/4013
2.3
The dsPIC DSC devices feature a 16/16-bit signed
fractional divide operation, as well as 32/16-bit and 16/
16-bit signed and unsigned integer divide operations, in
the form of single instruction iterative divides. The
following instructions and data sizes are supported:
1.
2.
3.
4.
5.
The 16/16 divides are similar to the 32/16 (same number
of iterations), but the dividend is either zero-extended or
sign-extended during the first iteration.
TABLE 2-1:
DS70138G-page 18
DIVF
DIV.sd
DIV.s
DIV.ud
DIV.u
DIVF – 16/16 signed fractional divide
DIV.sd – 32/16 signed divide
DIV.ud – 32/16 unsigned divide
DIV.s – 16/16 signed divide
DIV.u – 16/16 unsigned divide
Instruction
Divide Support
DIVIDE INSTRUCTIONS
Signed fractional divide: Wm/Wn W0; Rem W1
Signed divide: (Wm+1:Wm)/Wn W0; Rem W1
Signed divide: Wm/Wn W0; Rem W1
Unsigned divide: (Wm+1:Wm)/Wn W0; Rem W1
Unsigned divide: Wm/Wn W0; Rem W1
The divide instructions must be executed within a
REPEAT loop. Any other form of execution (e.g., a
series of discrete divide instructions) will not function
correctly because the instruction flow depends on
RCOUNT. The divide instruction does not automatically
set up the RCOUNT value and it must, therefore, be
explicitly and correctly specified in the REPEAT instruc-
tion, as shown in
target instruction {operand value+1} times). The
REPEAT loop count must be setup for 18 iterations of
the DIV/DIVF instruction. Thus, a complete divide
operation requires 19 cycles.
Function
Note:
The divide flow is interruptible. However,
the user needs to save the context as
appropriate.
Table 2-1
 2010 Microchip Technology Inc.
(REPEAT will execute the