DSPIC33FJ128GP706A-I/MR Microchip Technology, DSPIC33FJ128GP706A-I/MR Datasheet - Page 36

IC DSPIC MCU/DSP 128K 64-QFN

DSPIC33FJ128GP706A-I/MR

Manufacturer Part Number
DSPIC33FJ128GP706A-I/MR
Description
IC DSPIC MCU/DSP 128K 64-QFN
Manufacturer
Microchip Technology
Series
dsPIC™ 33Fr

Specifications of DSPIC33FJ128GP706A-I/MR

Core Processor
dsPIC
Core Size
16-Bit
Speed
40 MIPs
Connectivity
CAN, I²C, IrDA, LIN, SPI, UART/USART
Peripherals
AC'97, Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 18x10b/12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-VFQFN, Exposed Pad
Product
DSCs
Processor Series
DSPIC33F
Core
dsPIC
3rd Party Development Tools
52713-733, 52714-737, 53276-922, EWDSPIC
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, DM240001, DV164033
Core Frequency
40MHz
Core Supply Voltage
3.3V
Embedded Interface Type
I2C, SPI, UART
No. Of I/o's
53
Flash Memory Size
128KB
Supply Voltage Range
3V To 3.6V
Rohs Compliant
No
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
MCP3909 / dsPIC33F 3-Phase Energy Meter Reference Design
DS51723A-page 36
3.5.1
The task of this module is to enable the MCP3909 device to enter the "Channel Output"
mode. This design uses the "Channel Output" mode of the MCP3909 device. In this mode,
the current and voltage data channels measured by the ADC is sent through the
MCP3909 device's SPI port. To enable the MCP3909 device to enter the Channel
Output mode, certain instructions must be sent to the device via the SPI interface within
a specified time (32CLK) after resetting the MCP3909 device.
• Enable all MCP3909 devices: enable ADCS1, ADCS2 and ADCS3, and configure
• Reset the MCP3909 device through the RESET pin. The pin must be pulled low
• After the RESET pin is pulled high, wait for 4 clock cycles for the MCP3909 device
• Send Instruction 0x94 to the MCP3909 device through the SPI Interface
• Configure the SPI interface to 16-bit mode and strobe the MCP3909 device for
FIGURE 3-6:
MCU's SPI to 8-bit mode
for no less than 1 clock cycle of the MCP3909 device
pin functions to reset
Phase A
Initialize and Configure MCP3909 Operation Mode
Initializing the MCP3909 Device Flow Chart.
Set SPI to 16-bit mode
the MCP3909 device
Wait for 4 CLK cycles
Send instruction 0xac
Strobe phase A of
MCP3909 devices
MCP3909 devices
Initialize MCP3909
Strobe all
Reset the
End
© 2009 Microchip Technology Inc.

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