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2-6
DSP56012 User’s Manual
MOTOROLA
Signal Descriptions
Ground
2.3
GROUND
Table 2-3
Grounds
Ground Name
Description
GND
P
PLL Ground
—GND
P
is ground dedicated for PLL use. The connection should be
provided with an extremely low-impedance path to ground. V
CCP
should be
bypassed to GND
P
by a 0.1
µ
F capacitor located as close as possible to the chip
package.
GND
Q
Internal Logic Ground
—GND
Q
is an isolated ground for the internal processing
logic. This connection must be tied externally to all other chip ground
connections. The user must provide adequate external decoupling capacitors.
GND
A
A Ground
—GND
A
is an isolated ground for sections of the internal logic. This
connection must be tied externally to all other chip ground connections. The user
must provide adequate external decoupling capacitors.
GND
D
D Ground
—GND
D
is an isolated ground for sections of the internal logic. This
connection must be tied externally to all other chip ground connections. The user
must provide adequate external decoupling capacitors.
GND
H
Host Ground
—GND
H
is an isolated ground for the HI I/O drivers. This
connection must be tied externally to all other chip ground connections. The user
must provide adequate external decoupling capacitors.
GND
S
Serial Host Ground
—GND
S
is an isolated ground for the SHI I/O drivers. This
connection must be tied externally to all other chip ground connections. The user
must provide adequate external decoupling capacitors.
Summary of Contents for DSP56012
Page 12: ...xii Motorola ...
Page 20: ...xx Motorola ...
Page 21: ...MOTOROLA DSP56012 User s Manual 1 1 SECTION 1 OVERVIEW ...
Page 40: ...1 20 DSP56012 User s Manual MOTOROLA Overview DSP56012 Architectural Overview ...
Page 41: ...MOTOROLA DSP56012 User s Manual 2 1 SECTION 2 SIGNAL DESCRIPTIONS ...
Page 61: ...SECTION 3 MEMORY OPERATING MODES AND INTERRUPTS ...
Page 81: ...MOTOROLA DSP56012 User s Manual 4 1 SECTION 4 PARALLEL HOST INTERFACE ...
Page 148: ...4 68 DSP56012 User s Manual MOTOROLA Parallel Host Interface Host Interface HI ...
Page 149: ...MOTOROLA DSP56012 User s Manual 5 1 SECTION 5 SERIAL HOST INTERFACE ...
Page 179: ...MOTOROLA DSP56012 User s Manual 6 1 SECTION 6 SERIAL AUDIO INTERFACE ...
Page 205: ...MOTOROLA DSP56012 User s Manual 7 1 SECTION 7 GPIO ...
Page 210: ...7 6 DSP56012 User s Manual MOTOROLA GPIO GPIO Register GPIOR ...
Page 211: ...MOTOROLA DSP56012 User s Manual 8 1 SECTION 8 DIGITAL AUDIO TRANSMITTER ...
Page 226: ...8 16 DSP56012 User s Manual MOTOROLA Digital Audio Transmitter DAX Programming Considerations ...
Page 233: ...MOTOROLA DSP56012 User s Manual B 1 APPENDIX B PROGRAMMING REFERENCE ...