L5510
7 Other Features
■ 208-pin QFP package
■ Automatic and programmed power-down
modes
■ 3.3 V I/Os with 5 V tolerance, 2.5 V logic core
■ Programmable read channel and preamp VCM
serial interfaces
■ Dual on-chip frequency synthesizers optimize
DSP, servo, Ultra-DMA and buffer performance
■ General purpose I/O and PWM pins
■ Programmable baud-rate RS232 interface
8 DESCRIPTION
The Device is a highly integrated, automated sin-
gle-chip Drive Manager and Disk Drive Controller
IC designed for high-performance, headerless
ATA drive applications. Figure 2 shows the chip’s
main functional blocks.
Figure 2. Functional Block Diagram
BUFFER
SDRAM
ATA BUS
FLASH
ROM
(SYNC or
ASYNC)
SRAM
BCTL
DCTL
HIF
ROM
RAM
DSP
EDAC
SERVO
PERIPHERALS
READ
CHANNEL
Table 2. Revision History
Date
Revision
December 2004
1
First Issue
Description of Changes
2/3