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參數資料
| 型號： | GL422 |
| 廠商： | Genesys Logic, Inc. |
| 英文描述： | USB 2.0 +SD/MMC-controller Combo Solution |
| 中文描述： | 個USB 2.0 SD / MMC卡控制器的組合方案 |
| 文件頁數： | 7/32頁 |
| 文件大?。?/td> | 285K |
| 代理商： | GL422 |
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GL422/GL423 USB 2.0 +SD/MMC-controller Combo Solution
2000-2006 Genesys Logic Inc. - All rights reserved.
Page 7
CHAPTER 1 GENERAL DESCRIPTION
Genesys Logic
’
s GL422/GL423 controller is an single-chip controllers support both USB2.0 and
MMC4.0/SD1.1 specifications. While USB controller and SD/MMC card controller are integrated as a
combo-function single chip, this chip provides an enhanced combo solution of USB2.0 and SD/MMC card.
GL422/GL423 is designed based on USB2.0 and MMC4.0/SD1.1 specification. Its unique RAM based firmware
strategy provides flexibility for fast compatibility and performance improvement, therefore, give customers
strong support to win in today
’
s fast-changing market.
GL422/GL423 manages interface protocol, data storage and retrieval, error detection and correction, defect
handling and diagnostic, as well as power management. With a built-in flash management algorithm,
GL422/GL423 is applicable for most types of flash in the market: SAMSUNG, MICRON, ST, TOSHIBA,
HYNIX and RENESAS.
GL422/GL423 is packaged QFN-56 and VFBGA-54. Both die and QFN/VFBGA package are available and
completely meet SD and MMC memory card mechanical thickness requirement. The pin assignment that fits to
card sockets provides easy PCB layout.
GL422/GL423 die has a dual channel flash access interface, which remarkably speed up read/write performance.
QFN-56 packaged GL422/GL423 supports SD1.1 only. VFBGA-54 packaged GL422/GL423 supports both
SD1.1 and MMC4.0.
Figure 1.1 is the block diagram of VFBGA422/GL423.
USB
PHY
Fl ash
Access
IF
CARD
Control l er
USB
Control l er
GL422/GL423
Control
Logi c
USB
Interface
CARD
Interface
Fl ash1
Interface
Fl ash2
Interface
Figure 1.1 - GL422/GL423 Block Diagram
相關PDF資料 |
PDF描述 |
|---|---|
| GL423 | USB 2.0 +SD/MMC-controller Combo Solution |
| GL424 | SD/MMC Flash Card Controller |
| GL424-PMGXX | SD/MMC Flash Card Controller |
| GL424-WMGXX | SD/MMC Flash Card Controller |
| GL424-WOGXX | SD/MMC Flash Card Controller |
相關代理商/技術參數 |
參數描述 |
|---|---|
| GL423 | 制造商:GENESYS 制造商全稱:GENESYS 功能描述:USB 2.0 +SD/MMC-controller Combo Solution |
| GL424 | 制造商:GENESYS 制造商全稱:GENESYS 功能描述:SD/MMC Flash Card Controller |
| GL424-PMGXX | 制造商:GENESYS 制造商全稱:GENESYS 功能描述:SD/MMC Flash Card Controller |
| GL424-WMGXX | 制造商:GENESYS 制造商全稱:GENESYS 功能描述:SD/MMC Flash Card Controller |
| GL424-WOGXX | 制造商:GENESYS 制造商全稱:GENESYS 功能描述:SD/MMC Flash Card Controller |
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