DSPIC30F4011-20E/PT Microchip Technology, DSPIC30F4011-20E/PT Datasheet - Page 5

• Manufacturer Part Number: DSPIC30F4011-20E/PT
• Description: IC DSPIC MCU/DSP 48K 44TQFP
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F4011-20E/PT

• Program Memory Type: FLASH
• Program Memory Size: 48KB (16K x 24)
• Package / Case: 44-TQFP, 44-VQFP
• 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
• 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
• Data Bus Width: 16 bit
• Processor Series: DSPIC30F
• Core: dsPIC
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 30
• Data Ram Size: 2 KB
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Data Rom Size: 1024 B
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE4000, DM240002, DM300018, DM330011
• Minimum Operating Temperature: - 40 C
• Package: 44TQFP
• Device Core: dsPIC
• Family Name: dsPIC30
• Maximum Speed: 20 MHz
• Interface Type: CAN/I2C/SPI/UART
• On-chip Adc: 9-chx10-bit
• Number Of Timers: 5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT44PT3 - SOCKET TRAN ICE 44MQFP/TQFPAC30F006 - MODULE SKT FOR DSPIC30F 44TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: DSPIC30F401120EPT

4. Module: PSV Operations
TABLE 3:
EXAMPLE 2:
© 2010 Microchip Technology Inc.
ADDC
SUBB
SUBBR
CPB
RLC
RRC
ADD (Accumulator-based)
LAC
Note 1:
.include “p30fxxxx.inc”
.......
MOV.B #0x00, W0
MOV.B WREG, PSVPAG
BSET CORCON, #PSV
....
MOV
ADD
ADDC W4, [W1++], W6 ;Carry flag and
When one of the operands of instructions shown in
Table 3 is fetched from program memory using
Program Space Visibility (PSV), the STATUS
Register, SR and/or the results may be corrupted.
Work arounds
Work around 1: For Assembly Language
Source Code
To work around the erratum in the MPLAB ASM30
assembler, the application may perform a PSV
access to move the source operand from program
memory to RAM or a W register prior to performing
the operations listed in Table 3. The work around
for Example 2 is demonstrated in Example 3.
2:
3:
4:
#0x8200, W1
W3, [W1++], W5 ;This instruction
Refer to the “dsPIC30F/33F Programmer’s Reference Manual” (DS70157) for details on the dsPIC30F
instruction set.
The errata only affects these instructions when a PSV access is performed to fetch one of the source
operands in the instruction. A PSV access is performed when the Effective Address of the source operand
is greater than 0x8000 and the PSV bit (CORCON<2>) is set to ‘1’. In the examples shown, the data
access from program memory is made via the W1 register.
SR<1:0> bits represent Sticky Zero and Carry Status bits, respectively.
SR<15:10> bits represent Accumulator Overflow and Saturation Status bits.
Instruction
AFFECTED INSTRUCTIONS
INCORRECT RESULTS
(1)
;Load PSVPAG register
;Enable PSV
;Set up W1 for
;indirect PSV access
;from 0x000200
;works ok
;W6 gets
;corrupted here!
ADDC W0, [W1++], W2 ;
SUBB.b W0, [++W1], W3 ;
SUBBR.b W0, [++W1], W3 ;
CPB W0, [W1++], W4 ;
RLC [W1], W4 ;
RRC [W1], W2 ;
ADD [W1++], A ;
LAC [W1], A ;
Examples of Incorrect Operation
EXAMPLE 3:
.include “p30fxxxx.inc”
.......
MOV.B #0x00, w0
MOV.B WREG, PSVPAG
BSET
....
MOV
ADD
MOV
ADDC
These instructions are identified in Table 3.
Example 2 demonstrates one scenario where this
occurs.
Also, always use Work around 2 if the C compiler
is used to generate code for dsPIC30F4011/4012
devices.
Work around 2: For C Language Source Code
For applications using C language, MPLAB C30
versions 1.20.04 or higher provide the following
command-line switch that implements a work
around for the erratum.
Refer to the “readme.txt” file in the MPLAB C30
v1.20.04 toolsuite for further details.
Affected Silicon Revisions
A1
X
CORCON, #PSV
#0x8200, W1
W3, [W1++], W5 ;This instruction
[W1++], W2
W4, W2, W6
(2)
A2
dsPIC30F4011/4012
X
-merrata=psv
SR<1:0> bits
SR<1:0> bits
SR<1:0> bits
SR<1:0> bits
SR<1:0> bits
SR<1:0> bits
SR<1:0> bits
SR<15:10> bits
A3
X
CORRECT RESULTS
Data Corruption IN
A4
X
;Load PSVPAG register
;Enable PSV
;Set up W1 for
;indirect PSV access
;from 0x000200
;works ok
;Load W2 with data
;from program memory
;Carry flag and W4
;results are ok!
(3)
(3)
(3)
(3)
(3)
(3)
(3)
, Result in W2
, Result in W3
, Result in W3
, Result in W4
, Result in W2
(4)
DS80454D-page 5