GL830 Product Overview

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GENERAL DESCRIPTION

The GL830 is a highly-compatible, low cost USB 2.0 / PATA to SATA bridge controller, which integrates

Genesys Logic own design high speed UTMI (USB 2.0 Transceiver Macrocell Interface) transceiver/receiver

and Serial ATA PHY. As a one-chip solution which complies with Universal Serial Bus specification rev. 2.0

and Serial ATA specification rev. 2.6. There are totally 4 endpoints in the GL830 controller, Control (0), Bulk In

(1), Bulk Out (2), and Interrupt (3). By complies with the USB Storage Class specification ver.1.0 (Bulk only

protocol), the GL830 can support not only plug and play but also Windows Vista/ XP/ 2000/ ME default driver.

The GL830 uses 25MHz crystal and slew-rate controlled pads to reduce the EMI issue.

GL830 provides four package types –LQFP 48 pin (7x7mm), LQFN 46 pin (4.5x6.5mm), LQFP 64 pin (7x7mm)

& LQFP 128 pin (14x14mm) for different target applications.

1. LQFP 48 pin package provides basic USB to SATA bridge function to fit standard USB 2.0 high speed

storage class applications such as SATA HDD and ODD enclosure. It provides the best cost / performance

solution in industry. In terms of cost, GL830 features on-chip 5V to 3.3V regulator and low pin count

package to minimize overall system cost. In terms of performance, GL830 provides industry-leading data

read / write speed and latency that powered by internal turbo 8051 micro processor. In terms of power

consumption, GL830 features low-power mixed signal design to reduce silicon operating current. It also

provides various power management options for system designer to reduce system level power

consumption.

2. LQFN 46 pin package provides the same function / performance as LQFP 48 pin. It features smaller silicon

foot print and lower silicon operating temperature, which is perfect for mechanical limited PCB design.

3. LQFP 64 pin (A) provides an additional SATA differential pair that enables USB / E-SATA (External

SATA) to SATA function for HDD enclosures with both USB and E-SATA port. It features on-chip SATA

switch that provides both E-SATA to SATA and USB to SATA data path in one single chip.

application is USB to PATA & SATA Combo Devices

5. LQFP 128 pin integrates USB, PATA and SATA interface into one single chip. PATA interface can be

configured as host or device that meet system requirement of various applications. For example, when

PATA is in device mode, GL830 can be connected to embedded system’s legacy IDE port to serve as a

multi-IO bridge for USB and SATA connection. When PATA is in host mode, GL830 is a USB to PATA

and SATA bridge that enable concurrent data transfer on both USB to PATA and USB to SATA path.

Table 1.1 - 48/46/64/128 pin feature comparison

Applications

48 pin

LQFP

46 pin

LQFN

64 pin

LQFP (A)

64 pin

LQFP (B)

128 pin

LQFP

USB host to SATA HDD / ODD

■

■

■

■

■

USB / E-SATA host to SATA HDD

■

■

USB / E-SATA / PATA host to SATA HDD

■

USB host to PATA + SATA HDD

■

■