Silicon Motion SM2232EN - Manual

Mobile Storage
Zoom Family
www.siliconmotion.com
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material contained herein, may be reproduced without written consent of the manufacturer.
© Copyright 2011 Silicon Motion, Inc.
2-channel CompactFlash Card Controller
SM2232EN
The SM2232EN CompactFlash card controller offers
ultra high performance and extreme low power
consumption for CompactFlash cards. The
SM2232EN is compliant with CF 6.0 specification and
supports DMA mode up to UDMA 7. With 8 chip
enable pins per channel, the controller is able to
connect up to 16 flash devices.
Equipped with powerful Error Correction Coding (ECC)
and flash interface, the SM2232EN can support new
generation flash including SDR, DDR, Toggle, and
ONFI NAND flash. The SM2232EN offers advanced
technology to transfer data to the host via a high
efficiency DMA engine and utilizes the internal
memory buffer in a sufficient way. With Silicon
Motion ’s optimized wear leveling, bad block
management, and flash management technologies,
the SM2232EN delivers the extraordinary
performance in data read/write speed and data
reliability for industrial CF and PATA SSD
applications.
Applications
 CompactFlash Card
 PATA Solid State Disk
 High-Speed NAND Storage
Package
 128-pin TQFP package
 Lead-free and RoHS Compliant
Key Features
 Host interface

Supports CompactFlash specification revision
6.0

Supports PIO Mode 0 - 6

Supports Multiword DMA Mode 0 - 4

Supports Ultra DMA Mode 0 - 7

Supports PCMCIA Extended Memory Mode
(Cycle time: 250, 120, 100, 80 ns)

Supports PCMCIA Ultra DMA Mode 0 - 7

TRIM command support

External device termination resistors for Ultra
DMA
 Flash Memory Support

Supports SLC/MLC NAND flash

Supports 1.8V and 3.3V flash

Supports page size: 2KB, 4KB, 8KB, 16KB

Supports one-plane and simultaneous two-
plane operations

Supports two-way and four-way interleaving to
enhance read/write performance
 Flash interface and firmware

Supports ONFI 2.1/2.2
Synchronous/Asynchronous Interface

Supports Toggle Synchronous Interface

Dual channel 8-bit flash interface

Channel support of up to 8 flash chips

Total memory capacity of up to 16 flash chips

In-System Programming (ISP) provides
flexibility for new Flash and device
compatibility support
 Operating temperature

0°C ~ 70°C for the commercial version

-40°C ~ 85°C for the industrial version
CF Interface
Bus Controller
Channel 0
NAND
Flash
IIC Master/
Slave
Controller
Micro
Processor
ROM
RAM
Host
Controller
Channel 1
Data
Buffer
ECC
Engine
Flash Controller
NAND
Flash