DSPIC30F5011-20E/PT Microchip Technology, DSPIC30F5011-20E/PT Datasheet - Page 8

• Manufacturer Part Number: DSPIC30F5011-20E/PT
• Description: IC,DSP,16-BIT,CMOS,TQFP,64PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F5011-20E/PT

• Rohs Compliant: YES
• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 20 MIPS
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: AC'97, Brown-out Detect/Reset, I²S, LVD, POR, PWM, WDT
• Number Of I /o: 52
• Program Memory Size: 66KB (22K x 24)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 16x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 64-TFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT64PT5 - SOCKET TRAN ICE 64MQFP/TQFPAC30F008 - MODULE SKT FOR DSPIC30F 64TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: DSPIC30F5011-20E/PTG; DSPIC30F501120EPT; DSPIC30F501120EPT

dsPIC30F5011/5013
6. Module: I
EXAMPLE 6:
DS80453E-page 8
Data writes to the I2CTRN Special Function
Register may not be correct at device operation
greater than 20 MIPS for V
to 5.5V (or 10 MIPS V
3.6V).
If the dsPIC DSC device needs to operate at a
throughput higher than 20 MIPS, the user should
incorporate the suggested work around while
writing to the I2CTRN SFR.
Applications that use I
Microchip’s dsPIC30F Peripheral Library should
operate the device at 20 MIPS or less.
Work arounds
Work around 1: For Assembly Language
Source Code
When writing to the I2CTRN SFR, the user must
follow the write sequence shown in
this example, a Memory Direct Addressing mode
is used to write to the SFR. The application may
use any addressing mode to perform the write
operation. Note that interrupts must be temporarily
disabled as shown, so that this write sequence
does not get interrupted.
.include “p30fxxxx.inc”
.......
MOV
PUSH
BSET
BSET
BSET
MOV
MOV
MOV
POP
#reg_value, W1 ;I2CTRN value
SR
SR,
SR,
SR,
#I2CTRN, W0
W0, W0
W1, I2CTRN
SR
2
C
#IPL2
#IPL1
#IPL0
SPECIAL WRITE SEQUENCE
2
C software functions from
DD
;write I2CTRN
;address to W0
;perform a direct
;write to W0
;write to I2CTRN
DD
in the range of 3V to
in the range of 4.5V
Example
6. In
Work around 2: For C Language Source Code
For C programmers, the MPLAB C30 v1.30
toolsuite provides a built-in function that may be
incorporated in the application source code. This
function may be used to write to the I2CTRN SFR.
Some examples of usage are shown in the
“readme.txt” file provided with the MPLAB C30
v1.30 toolsuite. The function has the following
prototype:
void __builtin_writesfr(volatile void *,
unsigned int);
The special argument is the address of a 16-bit
SFR (I2CTRN in this case). For example, the
I2CTRN register can be written using a function
call:
__builtin_writesfr(&I2CTRN, reg_value);
where ‘reg_value’ is the 16-bit value to be
written to the SFR.
Affected Silicon Revisions
A1
X
A2
X
A3
X
© 2010 Microchip Technology Inc.
A4
X