
4
2001 ESS Technology, Inc.
SAM0354-060801
ES1990 PRODUCT BRIEF
ORDERING INFORMATION
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.
U.S. patents pending.
Canyon3D is a registered trademark of ESS Technology,
Inc.
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
SDO2
60
O
External AC-link serial data output. Select external codec by enabling Canyon3D_Base+38h [5].
GPIO11
I/O
General-purpose input/output.
PCGNT
61
I
PC/PCI grant input. Enable PC/PCI by setting PCI 50h [10:8].
GPIO12
I/O
General-purpose input/output.
LINE_OUT_R-L
62
O
Line output: surround, left channel.
LINE_OUT_R-R
63
O
Line output: surround, right channel.
PC_BEEP
64
I
PC speaker input.
PHONE
65
I
Mono input.
CD_L
66
I
CD-audio input: left channel.
CD_GND
67
I
CD-audio input: ground.
CD_R
68
I
CD-audio input: right channel.
MIC
69
I
Microphone input.
LINE_IN_L
70
I
Line input: left channel.
LINE_IN_R
71
I
Line input: right channel.
AVDD[2:1]
72:83
I
Analog supply voltage, 5V.
AVSS[2:1]
73:82
I
Analog ground.
VREF
74
O
Reference voltage.
AFILT[2:1]
75:76
O
Antialiasing filter cap for the ADC channel.
CAP[2:1]
77:78
O
ADC and DAC reference caps.
LINE_OUT_L
79
O
Line output: front, left channel.
LINE_OUT_R
80
O
Line output: front, right channel.
MONO_OUT
81
O
Mono output.
RXD
84
I
MIDI receive data input. Enable MIDI I/O (MPU-401 I/O) by setting PCI 40h [3].
TXD
85
O
MIDI transmit data output. Enable MIDI I/O (MPU-401 I/O) by setting PCI 40h [3].
RST#
86
I
PCI reset input.
INT#
87
O
Interrupt request output.
PCICLK
88
I
PCI bus clock input.
GNT#
91
I
Bus master grant input.
REQ#
92
O
Bus master request output.
Table 1
ES1990 Canyon3D-2LE Pin Descriptions (Continued)
Names
Pin Numbers
I/O
Descriptions
Part Number
Description
Package
ES1990S
PCI Audio Accelerator
100-pin LQFP