ES1988S ETC, ES1988S Datasheet - Page 5

• Manufacturer Part Number: ES1988S
• Description: PCI Audio-modem Accelerator Product Brief
• Manufacturer: ETC

ES1988 PRODUCT BRIEF
Table 1
ESS Technology, Inc.
Names
SDI2
GPIO8
OSCI
OSCO
SRESET2#
GPIO3
SDFS2
GPIO9
(note)
SCLK2
GPIO10
SDO2
GPIO11
VAUXD
PCGNT#
GT0#
GS0
GPIO12
PC_BEEP
PHONE
CD_L
CD_GND
CD_R
MIC
LINE_IN_L
LINE_IN_R
AVDD[2:1]
AVSS[2:1]
VREF
ES1988 Pin Descriptions (Continued)
Pin Numbers
83, 72
82, 73
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
74
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
I
External AC-link serial data input. Select secondary codec by enabling Allegro_Base+38h [5] =
1.
General-purpose input/output.
49.152-MHz crystal input.
49.152-MHz crystal output.
Reset output for AC-Link interface. Select secondary codec by enabling Allegro_Base+38h [5] =
1.
General-purpose input/output.
Serial data frame sync output for AC-Link interface. Select secondary codec by enabling
Allegro_Base+38h [5] = 1.
General-purpose input/output.
If a pull-down resistor is used on this pin, the ES1988 is configured as a multifunction device
(audio-modem). Otherwise, the ES1988 is configured as a single function audio-only device.
Serial clock for AC-link interface. Select secondary codec by enabling Allegro_Base+38h [5] = 1.
General-purpose input/output.
External AC-link serial data output. Select secondary codec by enabling Allegro_Base+38h [5] =
1.
General-purpose input/output.
V
D3
supported, then V
down.
PC/PCI grant input. Enable PC/PCI by setting PCI 50h [10:8] = 010. Select PCGNT# from pin 63
by setting Allegro_Base+58h [6] = 0. Either pin 54 or pin 63 may be used for PCGNT#.
Grant to PCI master. GTO# is enabled by setting PCIx2 arbiter bits PCI 58h [0] = 1 and PCI 58h
[11] = 1. Select GT0#/GSO from pin 63 by enabling PCI 58h [10] = 1. Pin 51 may also be used as
GT0#/GSO.
Grant select 0 output to control external quick switch to grant PCI master phase. GSO is enabled
by setting PCIx2 arbiter bit PCI 58h [0] = 1 and PCI 58h [11] = 0. Select GS0/GT0# from pin 63
by enabling PCI 58h [10] = 1. Pin 51 may also be used as GT0#/GSO.
General-purpose input/output.
PC Speaker input.
Mono input.
CD-audio left channel input.
CD-audio ground input.
CD-audio right channel input.
Microphone input.
Line left channel input.
Line right channel input.
Analog supply voltage, 5V.
Analog ground.
Reference voltage.
AUX
cold
detect. During the reset period, the V
state, and is driven low to indicate ACPI is not supported in the D3
AUX
(pin 55) should be connected to VCC and V
Descriptions
AUXD
pin is driven high to indicate ACPI support in the
SAM0368-030601
AUXD
(pin 62) should be pulled
cold
state. If V
AUX
is not
5