DSPIC30F4011-20E/P Microchip Technology, DSPIC30F4011-20E/P Datasheet - Page 3

• Manufacturer Part Number: DSPIC30F4011-20E/P
• Description: IC, DSC, 16BIT, 48KB, 40MHZ, 5.5V, DIP40
• Manufacturer: Microchip Technology
• Series: DsPIC30Fr

Specifications of DSPIC30F4011-20E/P

• Core Frequency: 40MHz
• Core Supply Voltage: 5.5V
• Embedded Interface Type: I2C, SPI, UART
• No. Of I/o's: 30
• Flash Memory Size: 48KB
• Supply Voltage Range: 2.5V To 5.5V
• 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: 30
• 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 9x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC30F003 - MODULE SOCKET DSPIC30F 40DIPACICE0206 - ADAPTER MPLABICE 40P 600 MIL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: DSPIC30F4011-20EP

1. Module: MAC Class Instructions with ±4
2. Module: CPU –
EXAMPLE 1:
© 2008 Microchip Technology Inc.
L0:DAW.b
L1: ....
Sequential MAC class instructions, which prefetch
data from Y data space using ±4 address
modification, will cause an address error trap. The
trap occurs only when all of 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.
The Decimal Adjust instruction, DAW.b, may
improperly clear the Carry bit, C (SR<0>), when
executed.
Work around
Check the state of the Carry bit prior to 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 “p30fxxxx.inc”
.......
MOV.b
MOV.b
ADD.b
BRA
DAW.b
BSET.b
BRA
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.
#0x80, w0
#0x80, w1
w0, w1, w2 ;Perform addition
NC, L0
w2
L1
w2
SR, #C
Address Modification
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
3. Module: Special Function Registers
dsPIC30F4011/4012
The I/O Port register values can be changed by
writing to the following address locations, which
are located in unimplemented memory space. A
write to these unimplemented addresses could
cause an I/O pin configured as an output to
change states. This state change could be
confirmed by reading either the PORT or LAT
register associated with the pin.
PORTB will be modified by a write to address
0x0C8
PORTC will be modified by a write to address
0x0CE
PORTD will be modified by a write to address
0x0D4
PORTE will be modified by a write to address
0x0DA
PORTF will be modified by a write to address
0x0E0
Work around
User software should avoid writing to the
unimplemented locations listed above.
DS80215K-page 3