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Fabricante

CM-2

Digital Audio Networking Processor

Cirrus Logic 

CobraNet Hardware User’s Manual

Pinout and Signal Descriptions

4.2.5 Miscellaneous Signals

Signal

HRESET

WATCHDOG

MUTE

NC

Description

Reset

Watch Dog

Interface

Ready

No Connect

Direction

CM-2

Pin #

CS1810xx/

CS4961xx Pin #

Notes

In

J1:A18

93

System reset (active low).

10 ns max rise time. 1 ms min assertion time.

Toggles at 750 Hz nominal rate to indicate proper

operation. Period duration in excess of 200 ms

Out J3:A17

95

indicates hardware or software failure has occurred

and the interface should be reset. Note that

improper operation can also be indicated by short

pulses (<100 ns).

Out

J3:A2

92

Asserts (active low) during initialization and when a

fault is detected or connection to the network is lost.

-

-

28, 50-53, 78-

81, 141, 142

4.2.6 Power and Ground Signals

Signal

Description

CM-2 Pin #

CS1810xx/CS4961xx

Pin #

Specification

VCC_+3V

VCC_+5V

System Digital +3.3 v

J1:B20, B17, B15,

B13, B11, B9, B7,

B5, B3

J3:B14, B12, B10,

B8, B6, B4, B2

J3;B[18:17]

N/A

3.3 ± 0.3v, 500 mA Typ., 750 mA Max.

N/A

Backwards Compatibility

VDDD

VDDIO

VDDA

AUX_POWER

[3-0]

GND

Digital Ground

N/A

N/A

N/A

J3:B[20:19],

A[20:19]

J1:B19, B16, B14,

B12, B10, B8, B6,

B4, B2

J3:B16, B15, B13,

B11, B9, B7, B5,

B3, B1

10, 24, 54, 66, 83,

98, 119, 130

18, 33, 44, 60, 73,

91, 113, 136

129

N/A

13, 21, 27, 36, 47,

57, 63, 69, 76, 86,

94, 101, 116, 122,

126, 133, 139

+1.8 V @ 500mA Typ. for Core Logic

+3.3 V @ 120mA Typ. for I/O Logic

Filtered +1.8 V @ 10mA Typ.

14

©Copyright 2005 Cirrus Logic, Inc.

DS651UM23

Version 2.3

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