SMSC USB2640i - Manual (Page 8)

Ultra Fast USB 2.0 Multi-Format Flash Media Controller/USB Hub Combo
Revision 2.0 (10-03-08) 8 SMSC USB2640/USB2641
DATASHEET
1.1 Device Features
Hardware Features
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Single chip flash media controller
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Transaction translator (TT) in the hub supports operation of FS and LS peripherals
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Full power management with individual or ganged power control of each downstream port
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Optional support for external firmware access via SPI interface
- 30 MHz or 60 MHz operation support
- Single bit or dual bit mode support
- Mode 0 or mode 3 SPI support
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Memory Stick Specification 1.43
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Memory Stick Pro Format Specification 1.02
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Memory Stick Pro-HG Duo Format Specification 1.01 compliant
- Memory Stick, MS Duo, HS-MS, MS Pro-HG, MS Pro
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xD-Picture Card 1.2 compliant
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Secure Digital 2.0 / MultiMediaCard Specification 4.3 compliant
- SD 2.0, HS-SD, HC-SD
- TransFlash™ and reduced form factor media
- 1/4/8 bit MMC 4.2
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SDIO and MMC streaming mode support
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On board 24 MHz crystal driver circuit
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Optional external 24 MHz clock input. Must be used with an external resistor divider to provide a
1.8V signal.
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GPIO configuration and polarity
- Up to 8 GPIOs for special function use: LED indicators, button inputs, power control to memory
devices, etc. The number of actual GPIO’s depends on the implementation configuration used.
- One GPIO with up to 200 mA drive.
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Internal card power FET
-Up to 200 mA operation available
-"Fold-back" short circuit current protected
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8051 8-bit microprocessor
- 60 MHz - single cycle execution
- 64 KB ROM; 9 KB RAM
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Internal Regulator for 1.8V core operation
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Optimized pinout improves signal flow, easing implementation and allowing for improved signal
integrity treatment
Software Features
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Optimized for low latency interrupt handling
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Hub and flash media reader/writer configuration from a single source: External I 2 C ROM or external
SPI ROM
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EEPROM update via USB
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Please see the USB2640/USB2641 Software Release Notes for additional software features