ESS Technology, Inc.

SAM0354-060801

3

ES1990 PRODUCT BRIEF

PIN DESCRIPTION

PIN DESCRIPTION

The ES1990 Canyon3D-2LE pinouts are listed and

described in Table 1.

Table 1

ES1990 Canyon3D-2LE Pin Descriptions

Names

Pin Numbers

I/O

Descriptions

C/BE[3:0]#

1, 13, 20, 30

I/O

PCI command/byte enable. During address phase of a transaction, these pins define the bus command. Dur-

ing data phase, these pins define the byte enable.

IDSEL

2

I

ID Select.

GND

3, 21, 40, 89

I

Digital ground.

AD[31:0]

4:11, 22:29,

31:38, 93:100

I/O

Address and data lines from the PCI bus.

VCC

12, 41, 53, 90

I

Digital supply voltage, 3.3V.

FRAME#

14

I/O

Cycle frame.

IRDY#

15

I/O

Initiator ready.

TRDY#

16

I/O

Target ready.

DEVSEL#

17

I/O

Device select.

STOP#

18

I/O

Stop transaction.

PAR

19

I/O

Parity.

ECS

39

O

EEPROM chip select. Connects to EEPROM chip select input pin. ECS is active after power-on reset and

goes inactive automatically after EEPROM cycle is complete.

GD[0]

42

I/O

Game port data input/output.

GD[1]

43

I/O

Game port data input/output.

EDOUT

O

EEPROM data output. Connects to EEPROM data input. EDOUT goes active after power-on reset and goes

inactive automatically after EEPROM cycle is complete.

GD[2]

44

I/O

Game port data input/output.

EDIN

I

EEPROM data input. Connects to EEPROM data output. EDIN goes active after power-on reset and goes

inactive automatically after EEPROM cycle is complete.

GD[3]

45

I/O

Game port data input/output.

ECLK

O

EEPROM clock. Connects to EEPROM clock input. ECLK goes active after power-on reset and goes inac-

tive automatically after EEPROM cycle is complete.

GD[4]

46

I

Game port data input.

GD[5:7]

47:49

I

Game port data input.

GPIO[15:13]

I/O

General-purpose input/output.

EAPD

50

O

External amplifier power down (active high).

PCREQ#

51

O

PC/PCI request output. Enable PCREQ# by setting PCI 50h [10:8].

GPIO7

I/O

General-purpose input/output.

NC

52

—

No connect.

SDI2

54

I

External AC-link serial data input. Select external codec by enabling Canyon3D_Base+38h [5].

GPIO8

I/O

General-purpose input/output.

OSCI

55

I

49.152-MHz crystal input.

OSCO

56

O

49.152-MHz crystal output.

SRESET2#

57

I

Resets output for AC-link interface. Select external codec by enabling Canyon3D_Base+38h [5].

SDFS2

58

O

Serial data frame sync output for AC-link interface. Select external codec by enabling Canyon3D_Base+38h

[5].

GPIO9

I/O

General-purpose input/output.

SCLK2

59

O

Serial clock for AC-link interface. Select external codec by enabling Canyon3D_Base+38h [5].

GPIO10

I/O

General-purpose input/output.