DSPIC33FJ12MC202-I/ML Microchip Technology, DSPIC33FJ12MC202-I/ML Datasheet - Page 165

• Manufacturer Part Number: DSPIC33FJ12MC202-I/ML
• Description: IC DSPIC MCU/DSP 12K 28QFN
• Manufacturer: Microchip Technology
• Series: dsPIC™ 33Fr

Specifications of DSPIC33FJ12MC202-I/ML

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 40 MIPs
• Connectivity: I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, Motor Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 12KB (12K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 6x10b/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Core Frequency: 40MHz
• Core Supply Voltage: 2.75V
• Embedded Interface Type: I2C, JTAG, SPI, UART
• No. Of I/o's: 21
• Flash Memory Size: 12KB
• Supply Voltage Range: 3V To 3.6V
• Package: 28QFN EP
• Device Core: dsPIC
• Family Name: dSPIC33
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 3.3 V
• Data Bus Width: 16 Bit
• Number Of Programmable I/os: 21
• Interface Type: I2C/SPI/UART
• On-chip Adc: 6-chx10-bit|6-chx12-bit
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164336 - MODULE SOCKET FOR PM3 28/44QFNDM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

16.0
The Serial Peripheral Interface (SPI) module is a syn-
chronous serial interface useful for communicating with
other peripheral or microcontroller devices. These
peripheral devices can be serial EEPROMs, shift regis-
ters, display drivers, analog-to-digital converters, etc.
The SPI module is compatible with SPI and SIOP from
Motorola
FIGURE 16-1:
© 2008 Microchip Technology Inc.
Note:
SDOx
SCKx
SDIx
SSx
®
SERIAL PERIPHERAL
INTERFACE (SPI)
.
This data sheet summarizes the features
of the dsPIC33FJ12MC201/202 family of
devices. It is not intended to be a
comprehensive reference source.
complement the information in this data
sheet, refer to the dsPIC33F Family
Reference Manual, “Section 18. Serial
Peripheral Interface (SPI)” (DS70206),
which is available on the Microchip
website (www.microchip.com).
Read SPIxBUF
Control
Sync
Transfer
SPI MODULE BLOCK DIAGRAM
SPIxRXB
bit 0
SPIxBUF
SPIxSR
Control
Clock
Shift Control
SPIxTXB
Transfer
Write SPIxBUF
Preliminary
To
Select
Edge
dsPIC33FJ12MC201/202
Each SPI module consists of a 16-bit shift register,
SPIxSR (where x = 1 or 2), used for shifting data in and
out, and a buffer register, SPIxBUF. A control register,
SPIxCON, configures the module. Additionally, a status
register, SPIxSTAT, indicates status conditions.
The serial interface consists of four pins:
• SDIx (serial data input)
• SDOx (serial data output)
• SCKx (shift clock input or output)
• SSx (active low slave select).
In Master mode operation, SCK is a clock output. In
Slave mode, it is a clock input.
16
Secondary
1:1 to 1:8
Prescaler
Internal Data Bus
1:1/4/16/64
Prescaler
Primary
F
SPIxCON1<1:0>
SPIxCON1<4:2>
Enable
Master Clock
DS70265C-page 163
CY