DSPIC30F6010-30I/PF Microchip Technology, DSPIC30F6010-30I/PF Datasheet - Page 6

• Manufacturer Part Number: DSPIC30F6010-30I/PF
• Description: IC DSPIC MCU/DSP 144K 80TQFP
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F6010-30I/PF

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 30 MIPs
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, Motor Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 68
• Program Memory Size: 144KB (48K x 24)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP, 80-VQFP
• Core Frequency: 40MHz
• Core Supply Voltage: 5.5V
• Embedded Interface Type: CAN, I2C, SPI, UART
• No. Of I/o's: 68
• Flash Memory Size: 144KB
• Supply Voltage Range: 2.5V To 5.5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DM300019 - BOARD DEMO DSPICDEM 80L STARTERAC164314 - MODULE SKT FOR PM3 80PFDM300020 - BOARD DEV DSPICDEM MC1 MOTORCTRLAC30F001 - MODULE SOCKET DSPIC30F 80TQFPXLT80PT2 - SOCKET TRANSITION ICE 80TQFPDV164005 - KIT ICD2 SIMPLE SUIT W/USB CABLE
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: DSPIC30F601030IPF

dsPIC30F6010
6. Module: Early Termination of Nested DO
EXAMPLE 4:
DS80195H-page 6
LOOP1: MOV
LOOP0:
Note:
When using two DO loops in a nested fashion,
terminating the inner-level DO loop by setting the
EDT(CORCON<11>) bit will produce unexpected
results. Specifically, the device may continue
executing code within the outer DO loop forever.
This erratum does not affect the operation of the
MPLAB C30 compiler.
Work around
The application should save the DCOUNT SFR
prior to entering the inner DO loop and restore it
upon exiting the inner DO loop. This work around is
shown in Example 4.
.include “p30fxxxx.inc”
.......
DO #CNT1, LOOP0
....
PUSH
DO
....
BTSS
BSET
....
....
POP
...
For details on the functionality of
EDT bit, see section 2.9.2.4
in the dsPIC30F Family Reference
Manual.
MOV
Loops
DCOUNT
#CNT2, LOOP1
Flag, #0
CORCON, #EDT;Terminate inner
W1, W5
DCOUNT
W5, W8
SAVE AND RESTORE
DCOUNT
;Outer loop start
;Save DCOUNT
;starts
;DO-loop early
;Inner loop ends
;Restore DCOUNT
;Outer loop ends
;Inner loop
7. Module: Y Data Space Dependency
EXAMPLE 5:
EXAMPLE 6:
When an instruction that writes to a location in the
address range of Y data memory (addresses
between 0x1800 and 0x27FF) is immediately
followed by a MAC-type DSP instruction that reads
a location also resident in Y data memory, the two
operations will not be executed as specified. This
is demonstrated in Example 5.
Work arounds
Work around 1:
Insert a NOP between the two instructions as
shown in Example 6.
Work around 2:
If work around #1 is not feasible due to application
real-time
precautions to ensure that a write operation
performed on a location in Y data memory is not
immediately
instruction that performs a read operation of a
location in Y data memory.
MOV
MOV
MOV
MAC
MOV
MOV
MOV
NOP
MAC
#0x190A, W0
#0x19B0, W10
W2, [W0++]
W4*W5, A, [W10]+=2, W5 ;Perform
#0x190A, W0
#0x19B0, W10
W2, [W0++]
W4*W5, A, [W10]+=2, W5 ;Perform
constraints,
followed
INCORRECT RESULTS
CORRECT RESULTS
© 2008 Microchip Technology Inc.
by
the
;Load address > =
;0x1800 into W0
;Load address >=
;0x1800 into W10
;Perform indirect
;write via W0 to
;address >= 0x1800
;read operation
;using Y-AGU
;Load address > =
;0x1800 into W0
;Load address >=
;0x1800 into W10
;Perform indirect
;write via W0 to
;address >= 0x1800
;No operation
;read operation
;using Y-AGU
a
user
DSP
may
MAC-type
take