DSPIC30F3012-20E/ML Microchip Technology, DSPIC30F3012-20E/ML Datasheet - Page 3
![IC,DSP,16-BIT,CMOS,LLCC,44PIN,PLASTIC](/photos/6/81/68122/150-44-qfn_sml.jpg)
DSPIC30F3012-20E/ML
Manufacturer Part Number
DSPIC30F3012-20E/ML
Description
IC,DSP,16-BIT,CMOS,LLCC,44PIN,PLASTIC
Manufacturer
Microchip Technology
Series
dsPIC™ 30Fr
Datasheets
1.DSPIC30F2011-20ISO.pdf
(66 pages)
2.DSPIC30F2011-20ISO.pdf
(210 pages)
3.DSPIC30F2011-20ISO.pdf
(6 pages)
4.DSPIC30F2011-20IP.pdf
(26 pages)
5.DSPIC30F3012-20ISO.pdf
(14 pages)
6.DSPIC30F3012-20ISO.pdf
(20 pages)
Specifications of DSPIC30F3012-20E/ML
Rohs Compliant
YES
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
12
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 8x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
1. Module: MAC Class Instructions with ±4
© 2008 Microchip Technology Inc.
Sequential MAC class instructions, which prefetch
data from Y data space using ±4 address
modification cause an address error trap. The trap
occurs only when all the following conditions are
true:
1. Two sequential MAC class instructions (or a
2. Both instructions prefetch data from Y data
3. Neither of the instruction uses an accumulator
Work around
The problem described above can be avoided by
using any of the following methods:
1. Inserting any other instruction between the two
2. Adding an accumulator write back (a dummy
3. Do not use the + = 4 or - = 4 address
4. Do not prefetch data from Y data space.
MAC class instruction executed in a REPEAT or
DO loop) that prefetch from Y data space.
space using the + = 4 or - = 4 address
modification.
write back.
MAC class instructions.
write back if needed) to either of the MAC class
instructions.
modification.
Address Modification
2. Module: CPU –
EXAMPLE 1:
L0:DAW.b
L1: ....
dsPIC30F3012/3013
The Decimal Adjust instruction, DAW.b, may
improperly clear the Carry bit, C (SR<0>), when
executed.
Work around
Check the Carry bit status before executing the
DAW.b instruction. If the Carry bit is set, set the
Carry bit again after executing the DAW.b
instruction. Example 1 shows how the application
should process the Carry bit during a BCD addition
operation.
.include “p30f3013.inc”
.......
MOV.b
MOV.b
ADD.b
BRA
DAW.b
BSET.b SR, #C
BRA
#0x80, w0
#0x80, w1
w0, w1, w2 ;Perform addition
NC, L0
w2
L1
w2
CHECK CARRY BIT BEFORE
DAW.b
DAW.b
;First BCD number
;Second BCD number
;If C set go to L0
;If not,do DAW and
;set the carry bit
;and exit
Instruction
DS80255F-page 3