I.MX27 Datasheet, PDF (7/148 Pages) Freescale Semiconductor, Inc – Multimedia Applications Processor

Functional Description and Application Information
Table 2. Digital and Analog Modules (continued)
Block Mnemonic Block Name
Functional
Grouping
Brief Description
Section/
Page
I²C
Inter IC
Connectivity The I²C provides serial interface to control the sensor interface 2.3.16/17
Communication Peripheral and other external devices. Data rates of up to 100 Kbits/s are
supported.
IIM
IC Identification Security The IIM provides an interface for reading—and in some cases, 2.3.17/17
Module
programming, and overriding identification and control
information stored in on-chip fuse elements.
Contact your Freescale Semiconductor sales office or
distributor for additional information on SCC, RTIC, IIM,
SAHARA2
JTAGC
JTAG Controller
Debug
The JTAGC provides debug access to the ARM926 core,
built-in self-test (BIST), and boundary scan test control.
2.3.18/17
KPP
Keypad Port
Connectivity The KPP is used for key pad matrix scanning or as a general 2.3.19/17
Peripheral purpose I/O. This peripheral simplifies the software task of
scanning a keypad matrix.
LCDC
Liquid Crystal
Display
Controller
Multimedia The LCDC provides display data for external gray-scale or
Interface color LCD panels.
2.3.20/17
M3IF
Multi-Master
Memory
Interface
External
Memory
Interface
The M3IF controls memory accesses from one or more
masters through different port interfaces to different external
memory controllers ESDCTL/MDDRC, PCMCIA, NFC, and
WEIM.
2.3.21/18
MAX
Multi-layer AHB
Crossbar Switch
Bus Control
The ARM926EJ-S processor’s instruction and data buses and
all alternate bus master interfaces arbitrate for resources via a
6 × 3 MAX. There are six fully functional master ports (M0–M5)
and three fully functional slave ports (S0–S2). The MAX is
uni-directional. All master and slave ports are AHB-Lite
compliant.
2.3.22/18
MSHC
Memory Stick
Host Controller
Connectivity
Peripheral
The MSHC is placed in between the AIPI and the customer
memory stick to support data transfer from the i.MX27 device
to the customer memory stick.
Note: The i.MX27L does not support the MSHC feature
2.3.23/19
NFC
NAND Flash
Controller
External
Memory
Interface
The NFC is a submodule of EMI. The NFC implements the
interface to standard NAND Flash memory devices.
2.3.24/19
PCMCIA
Personal
Computer
Memory Card
International
Association
External
Memory
Interface
The PCMCIA host adapter module provides the control logic
for PCMCIA socket interfaces, and requires some additional
external analog power switching logic and buffering.
2.3.25/20
PLL
Phase Lock
Clock and The two DPLLs provide clock generation in digital and mixed 2.3.26/20
Loop
Reset Control analog/digital chips designed for wireless communication and
other applications.
PWM
Pulse-Width
Modulator
Timer
Peripheral
The PWM has a 16-bit counter and is optimized to generate 2.3.27/20
sound from stored sample audio images. It can also generate
tones.
i.MX27 and i.MX27L Data Sheet, Rev. 1.5
Freescale Semiconductor
7