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ES1946S bảng dữ liệu(PDF) 4 Page - List of Unclassifed Manufacturers |
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ES1946S bảng dữ liệu(HTML) 4 Page - List of Unclassifed Manufacturers |
4 / 4 page 4 © 2001 ESS Technology, Inc. All rights reserved. SAM0217-030601 ES1946 PRODUCT BRIEF No part of this publication may be reproduced, stored in a retrieval system, transmitted, or translated in any form or by any means, electronic, mechanical, manual, optical, or otherwise, without the prior written permission of ESS Technology, Inc. ESS Technology, Inc. makes no representations or warranties regarding the content of this document. All specifications are subject to change without prior notice. ESS Technology, Inc. assumes no responsibility for any errors contained herein. (P) U.S. patents pending. AudioDriveis a registered trademark of ESS Technology, Inc. ESFM is a trademark of ESS Technology, Inc. Certain audio features of this product manufactured under a license from Desper Products, Inc., Spatializer and the circle-in-square device are trademarks owned by Desper Products, Inc. U. S. Patent numbers #4,308,423, #4,355,203, #5,412,731. All other trademarks are owned by their respective holders and are used for identification purposes only. ESS Technology, Inc. 48401 Fremont Blvd. Fremont, CA 94538 Tel: (510) 492-1088 Fax: (510) 492-1898 ORDERING INFORMATION Names Pin Numbers I/O Descriptions PCSPKO 53 O Analog output of PCSPKI with volume control. PCSPKI 54 Ia Normally low digital PC speaker signal input. This signal is converted to an analog signal with volume control and appears on analog output PCSPKO. 5V-tolerant input. MSO 55 O MIDI serial data output. MSI 56 Ia MIDI serial input. Schmitt trigger input with internal pull-up resistor. Either MPU-401 or SoundBlaster formats. SIRQ 57 I/O Serialized IRQ. SECLK 58 O Clock for serial EEPROM. Pull-up to VDDD via external 47k Ω resistor. SEDO 59 I Serial data input from EEPROM. IISLR I Left/Right strobe for I2S interface. INTAB 60 O PCI interrupt request. PCPCIREQB 61 O PC/PCI serialized DREQ output (optional motherboard PC/PCI implementation). PCPCIGNTB 62 I PC/PCI serialized DACK input (optional motherboard PC/PCI implementation). CLKRUNB 63 I/O PCI clock state for power management. PRSTB 65 I PCI reset. PCLK 66 I PCI clock. This clock times all PCI transactions. GNTB 67 I PCI busmaster grant. REQB 68 O PCI busmaster request, tri-state output. IDSEL 78 I PCI device select for configuration. FRAMEB 90 I/O PCI cycle frame. IRDYB 91 I/O PCI initiator ready. TRDYB 92 I/O PCI target ready. DEVSELB 93 I/O PCI device select. STOPB 94 I/O PCI stop transaction. LOCKB 95 I/O PCI lock. PAR 96 I/O PCI parity. a. 1a pins are 5V pins with 3.3V digital supply on VDDD. Table 1 ES1946 Pin Descriptions (Continued) Part Number Description Package ES1946S PCI AudioDrive Controller for Notebook 100-pin LQFP |
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