I.MX27 Datasheet, PDF (8/148 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
RTC
RTIC
SAHARA2
SCC
SDHC
SLCDC
Real Time Clock
Timer
Peripheral
The RTC module provides a current stamp of seconds,
minutes, hours, and days. Alarm and timer functions are also
available for programming. The RTC supports dates from the
year 1980 to 2050.
2.3.28/20
Run-Time
Integrity
Checkers
Security
The RTIC ensures the integrity of the contents of the peripheral
memory and assists with boot authentication.
Contact your Freescale Semiconductor sales office or
distributor for additional information on SCC, RTIC, IIM,
SAHARA2
2.3.29/21
Symmetric/
Asymmetric
Hashing and
Random
Accelerator
Security
SAHARA2 is a security co-processor which forms part of the
Platform Independent Security Architecture (PISA), and can be
used on cell phone baseband processors or wireless PDAs.
Contact your Freescale Semiconductor sales office or
distributor for additional information on SCC, RTIC, IIM,
SAHARA2
2.3.30/21
Security
Controller
Module
Security
The SCC is a hardware component composed of two
blocks—the Secure RAM module, and the Security Monitor.
The Secure RAM provides a way of securely storing sensitive
information. The Security Monitor implements the security
policy, checking algorithm sequencing, and controlling the
Secure State.
Contact your Freescale Semiconductor sales office or
distributor for additional information on SCC, RTIC, IIM,
SAHARA2
2.3.31/21
Secured Digital
Host Controller
Connectivity The SDHC controls the MMC (MultiMediaCard), SD (Secure 2.3.32/21
Peripheral Digital) memory, and I/O cards by sending commands to cards
and performing data accesses to and from the cards.
Smart Liquid
Crystal Display
Controller
Multimedia The SLCDC module transfers data from the display memory 2.3.33/22
Interface buffer to the external display device.
SSI
Synchronous Multimedia The SSI is a full-duplex, serial port that allows the chip to
2.3.34/22
Serial Interface Peripheral communicate with a variety of serial devices, such as standard
codecs, digital signal processors (DSPs), microprocessors,
peripherals, and popular industry audio codecs that implement
the inter-IC sound bus standard (I²S) and Intel AC97 standard.
UART
Universal
Asynchronous
Receiver/
Transmitter
Connectivity
Peripheral
The UART provides serial communication capability with
external devices through an RS-232 cable or through use of
external circuitry that converts infrared signals to electrical
signals (for reception) or transforms electrical signals to signals
that drive an infrared LED (for transmission) to provide low
speed IrDA compatibility.
2.3.35/23
i.MX27 and i.MX27L Data Sheet, Rev. 1.5
8
Freescale Semiconductor