MA330028 Microchip Technology, MA330028 Datasheet - Page 265

• Manufacturer Part Number: MA330028
• Description: Daughter Cards & OEM Boards dsPIC33EP64MC504 PIM
• Manufacturer: Microchip Technology

Specifications of MA330028

• Rohs: yes
• Product: Daughter Cards
• Core: dsPIC
• Description/function: Plug-in-module with dsPIC33EP64MC504 device for use with DM330021 and DM330023 motor control development board
• Interface Type: CAN, I2C, SPI
• Operating Supply Voltage: 3 to 3.6 V
• Tool Is For Evaluation Of: dsPIC33EP64MC504
• For Use With: DM330021, DM330023

18.0
The SPI module is a synchronous serial interface use-
ful for communicating with other peripheral or micro-
controller devices. These peripheral devices can be
serial EEPROMs, shift registers, display drivers, A/D
converters, etc. The SPI module is compatible with
Motorola’s SPI and SIOP interfaces.
© 2011-2012 Microchip Technology Inc.
Note 1: This data sheet summarizes the features
2: Some registers and associated bits
SERIAL PERIPHERAL
INTERFACE (SPI)
of
dsPIC33EPXXXMC20X/50X,
PIC24EPXXXGP/MC20X
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to Section 18. “Serial
Peripheral Interface (SPI)” (DS70569)
of
Reference Manual”, which is available
from
(www.microchip.com).
described in this section may not be
available on all devices. Refer to
Section 4.0 “Memory Organization”
this data sheet for device-specific register
and bit information.
the
the
the
“dsPIC33E/PIC24E
Microchip
dsPIC33EPXXXGP50X,
families
web
Family
and
site
Preliminary
of
in
The dsPIC33EPXXXGP50X, dsPIC33EPXXXMC20X/
50X, and PIC24EPXXXGP/MC20X device family offers
two SPI modules on a single device. These modules,
which are designated as SPI1 and SPI2, are function-
ally identical. Each SPI module includes an eight-word
FIFO buffer and allows DMA bus connections. When
using the SPI module with DMA, FIFO operation can be
disabled.
The SPI1 module uses dedicated pins which allow for
a higher speed when using SPI1. The SPI2 module
takes advantage of the Peripheral Pin Select (PPS)
feature to allow for greater flexibility in pin configuration
of the SPI2 module, but results in a lower maximum
speed for SPI2. See
Characteristics”
The SPIx serial interface consists of four pins, as
follows:
• SDIx: Serial Data Input
• SDOx: Serial Data Output
• SCKx: Shift Clock Input or Output
• SSx/FSYNCx: Active-Low Slave Select or Frame
The SPIx module can be configured to operate with
two, three or four pins. In 3-pin mode, SSx is not used.
In 2-pin mode, neither SDOx nor SSx is used.
Figure 18-1
module in Standard and Enhanced modes.
Note:
Synchronization I/O Pulse
In this section, the SPI modules are
referred to together as SPIx, or separately
as SPI1 and SPI2. Special Function
Registers follow a similar notation. For
example, SPIxCON refers to the control
register for the SPI1 and SPI2 module.
illustrates the block diagram of the SPI
for more information.
Section 30.0 “Electrical
DS70657E-page 265