參數(shù)資料
型號: MCIMX27VOP4
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 400 MHz, MICROPROCESSOR, PBGA404
封裝: 17 X 17 MM, 0.65 MM PITCH, LEAD FEE, MAPBGA-404
文件頁數(shù): 75/118頁
文件大小: 1159K
代理商: MCIMX27VOP4
i.MX27 Data Sheet, Advance Information, Rev. 0.1
6
Preliminary—Subject to Change Without Notice
Freescale Semiconductor
Functional Description and Application Information
CSPI
Configurable
Serial
Peripheral
Interface (x3)
Connectivity
Peripheral
The i.MX27 processor has three CSPI modules. CSPI is
equipped with two data FIFOs and is a master/slave
configurable serial peripheral interface module, allowing the
i.MX27 processor to interface with both external SPI master
and slave devices.
DMAC
Direct Memory
Access
Controller
Standard
System
Resource
The DMAC of the i.MX27 processor provides 16 channels
supporting linear memory, 2D memory, FIFO and end-of-burst
enable FIFO transfers to support a wide variety of DMA
operations.
eMMA_lt
H/W
Accelerator
Functions
eMMA_lt consists of a PreProcessor and PostProcessor, and
provides video acceleration. The PrP and PP can be used for
generic video pre and post processing such as scaling,
resizing, and color space conversions.
EMI
External
Memory
Interface
Memory
Interface (EMI)
The EMI includes
Multi-Master Memory Interface (M3IF)
Enhanced SDRAM/MDDR memory controller (ESDRAMC)
PCMCIA memory controller (PCMCIA)
NAND Flash Controller (NFC)
Wireless External Interface Module (WEIM)
ESDRAMC
Enhanced
SDRAM
Controller
External
Memory
Interface
The ESDRAMC provides interface and control for synchronous
DRAM memories for the system.
FEC
Fast Ethernet
Controller
Connectivity
Peripheral
The FEC performs the full set of IEEE 802.3/Ethernet
CSMA/CD media access control and channel interface
functions. The FEC supports connection and functionality for
the 10/100 Mbps 802.3 media independent interface (MII). It
requires an external transceiver (PHY) to complete the
interface to the media.
GPIO
General
Purpose I/O
Module
Pins
The GPIO provides 32 bits of bidirectional, general purpose
I/O. This peripheral provides dedicated general-purpose pins
that can be configured as either inputs or outputs.
GPT
General
Purpose Timer
Timer
Peripheral
The GPT is a multipurpose module used to measure intervals
or generate periodic output.
I2C
Inter IC
Communication
Connectivity
Peripheral
The I2C provides serial interface to control the sensor interface
and other external devices. Data rates of up to 100 Kbits/s are
supported.
IIM
IC Identification
Module
Security
The IIM provides an interface for reading—and in some cases,
programming, and overriding identification and control
information stored in on-chip fuse elements.
JTAGC
JTAG Controller
Debug
The JTAGC provides debug access to the ARM926 core,
built-in self-test (BIST), and boundary scan test control.
KPP
Keypad Port
Connectivity
Peripheral
The KPP is used for key pad matrix scanning or as a general
purpose I/O. This peripheral simplifies the software task of
scanning a keypad matrix.
Table 2. Digital and Analog Modules (continued)
Block Mnemonic
Block Name
Functional
Grouping
Brief Description
Section/
Page
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