
Signal/Connection Descriptions
Power
MOTOROLA
DSP56007/D 
1-3
POWER
GROUND
Table 1-2   
Power Inputs
Power Name
Description
V
CCP
PLL Power
voltage should be well-regulated and the input should be provided with an 
extremely low impedance path to the V
—V
CCP
 provides isolated power for the Phase Lock Loop (PLL). The 
CC
 power rail.
V
CCQ
Quiet Power
input must be tied externally to all other chip power inputs. The user must provide 
adequate external decoupling capacitors.
—V
CCQ
 provides isolated power for the internal processing logic. This 
V
CCA
Address Bus Power
I/ O drivers. This input must be tied externally to all other chip power inputs. The 
user must provide adequate external decoupling capacitors.
—V
CCA
 provides isolated power for sections of the address bus 
V
CCD
Data Bus Power
—V
CCD
 provides isolated power for sections of the data bus I/ O 
drivers. This input must be tied externally to all other chip power inputs. The user 
must provide adequate external decoupling capacitors. 
V
CCS
Serial Interface Power
—V
CCS
 provides isolated power for the SHI and SAI. This 
input must be tied externally to all other chip power inputs. The user must provide 
adequate external decoupling capacitors.
Table 1-3   
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 0.47 
μ
F capacitor located as close as possible to the chip 
package. 
GND
Q
Quiet Ground
—GND
Q
 provides 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
Address Bus Ground
—GND
A
 provides isolated ground for sections of the address 
bus I/ O drivers. This connection must be tied externally to all other chip ground 
connections. The user must provide adequate external decoupling capacitors. 
GND
D
Data Bus Ground
—GND
D
 provides isolated ground for sections of the data bus 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 Interface Ground
—GND
S
 provides isolated ground for the SHI and SAI. This 
connection must be tied externally to all other chip ground connections. The user 
must provide adequate external decoupling capacitors.