CS1810XX Datasheet, PDF (14/54 Pages) Cirrus Logic – Digital Audio Networking Processor

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