4th Generation USB 2.0 Flash Media Controller with Integrated Card Power FETs & HS Hub
Datasheet
Revision 1.6 (06-20-08)
6
SMSC USB2601/USB2602
DATASHEET
Chapter 1 General Description
The USB2601/USB2602 is an Integrated “combo” High-Speed USB hub and Flash Media Controller.
The Flash media controller permanently resides on Port 1 of the Integrated USB hub.
1.1
High-Speed Hub
The integrated SMSC Hub is fully compliant with the USB 2.0 Specification and will attach to a USB
host as a Full-Speed Hub or as a Full-/High-Speed Hub. The Hub supports Low-Speed, Full-Speed,
and High-Speed (if operating as a High-Speed Hub) downstream devices on all of the enabled
downstream ports.
A dedicated Transaction Translator (TT) is available for each downstream facing port. This architecture
ensures maximum USB throughput for each connected device when operating with mixed-speed
peripherals.
The Hub works with an external USB power distribution switch device to control V
BUS
switching to
downstream ports, and to limit current and sense over-current conditions.
All required resistors on the USB ports are integrated into the Hub. This includes all series termination
resistors on D+ and D– pins and all required pull-down and pull-up resistors on D+ and D– pins. The
over-current sense inputs for the downstream facing ports have internal pull-up resistors.
Throughout this document the upstream facing port of the hub will be referred to as the upstream port,
and the downstream facing ports will be called the downstream ports.
Three externally available ports are available for general USB device connectivity.
1.2
Flash Media Controller
The Bulk Only Mass Storage Class Peripheral Controller intended for supporting CompactFlash (CF
and CF Ultra I/II) in True IDE Mode only, SmartMedia (SM) and xD cards, Memory Stick (MS), Memory
Stick DUO (MSDUO) and Memory Stick Pro (MSPRO), Secure Digital (SD), and MultiMediaCard
(MMC) flash memory devices. It provides a single chip solution for the most popular flash memory
cards in the market.
The device consists of buffers, Fast 8051 microprocessor with expanded scratchpad, and program
SRAM, and CF, MS, SM and SD controllers. The SD controller supports both SD and MMC devices.
SM controller supports both SM and xD cards.
12K bytes of scratchpad SRAM and 768 Bytes of program SRAM are also provided.
Eleven GPIO pins are provided for indicators, external serial EEPROM for OEM ID and system
configuration information, and other special functions.
Internal power FETs are provided to directly supply power to the xD/SM, MMC/SD and MS/MSPro
cards.
The internal ROM program is capable of implementing any combination of single or multi-LUN
CF/SD/MMC/SM/MS reader functions with individual card power control and activity indication. SMSC
also provides licenses** for Win98 and Win2K drivers and setup utilities. Note: Please check with
SMSC for precise features and capabilities for the current ROM code release.
*
Note
: In order to develop, make, use, or sell readers and/or other products using or incorporating any of the SMSC devices made
the subject of this document or to use related SMSC software programs, technical information and licenses under patent and other
intellectual property rights from or through various persons or entities, including without limitation media standard companies,
forums, and associations, and other patent holders may be required. These media standard companies, forums, and associations
include without limitation the following: Sony Corporation (Memory Stick, Memory Stick Pro); SD3 LLC (Secure Digital); MultiMedia
Card Association (MultiMediaCard); the SSFDC Forum (SmartMedia); the Compact Flash Association (Compact Flash); and Fuji
Photo Film Co., Ltd., Olympus Optical Co., Ltd., and Toshiba Corporation (xD-Picture Card). SMSC does not make such licenses
or technical information available; does not promise or represent that any such licenses or technical information will actually be
obtainable from or through the various persons or entities (including the media standard companies, forums, and associations), or
