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GL422 Datasheet(PDF) 12 Page - GENESYS LOGIC

Part # GL422
Description  USB 2.0 SD/MMC-controller Combo Solution
PDF  32 Pages
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Manufacturer  GENESYS [GENESYS LOGIC]
Direct Link  http://www.genesyslogic.com
Logo GENESYS - GENESYS LOGIC

GL422 Datasheet(HTML) 12 Page - GENESYS LOGIC

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GL422/GL423 USB 2.0 +SD/MMC-controller Combo Solution
©2000-2006 Genesys Logic Inc. - All rights reserved.
Page 12
3.1.7 High efficient hardware engine
• Automatic data read / write with card by hardware engine
• Easier firmware development
• Media interface signals output low automatically when suspend
3.1.8 Inter-Media transfer capability
• Support copy data between flash cards or within same flash card
3.2 Block diagram
MHE
Register
SIE/
FIFO/
MHE
control
UTM
SIE
8051 core
SRAM
256B
LUT
Mask
ROM
(48KB)
MS
MIF
MSP
MIF
SD
MIF
MCFIFO
(32B)
MHE
control
EPFIFO
EP3 FIFO
(64B)
BULK FIFO
(512B*2)
EP0 FIFO
(64B)
LUT
4KB
Figure 3.1 - USB Controller diagram
3.2.1 UTM
USB2.0 Transceiver Macro
3.2.2 SIE
Serial Interface Engine



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