Signal/Connection Descriptions
Clock
MOTOROLA
DSP56309UM/D 2-7
2.4
CLOCK
Clock Signal descriptions for the DSP56309 are listed in
GND
D
(4)
Data Bus Ground
ÑGND
D
is an 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. There are four GND
D
connections.
GND
C
(2)
Bus Control Ground
ÑGND
C
is an isolated ground for the bus control
I/O drivers. This connection must be tied externally to all other chip
ground connections. The user must provide adequate external
decoupling capacitors. There are two GND
C
connections.
GND
H
Host Ground
ÑGND
H
is an isolated ground for the HI08 I/O drivers.
This connection must be tied externally to all other chip ground
connections. The user must provide adequate external decoupling
capacitors. There is one GND
H
connection.
GND
S
(2)
ESSI, SCI, and Timer Ground
ÑGND
S
is an isolated ground for the
ESSI, SCI, and timer I/O drivers. This connection must be tied externally
to all other chip ground connections. The user must provide adequate
external decoupling capacitors. There are two GND
S
connections.
Note:
These designations are package-dependent. Some packages connect all GND inputs, except GND
P
and GND
P1
, to each other internally. On those packages, all ground connections, except GND
P
and
GND
P1
, are labeled GND. The number of connections indicated in this table are minimum values; the
total GND connections are package-dependent.
Table 2-4
Clock Signals
Signal
Name
Type
State
During
Reset
Signal Description
EXTAL
Input
Input
External Clock/Crystal Input
ÑEXTAL interfaces the
internal crystal oscillator input to an external crystal
or an external clock.
Table 2-3
Grounds (Continued)
Ground Name
Description
Содержание DSP56309
Страница 25: ...xxii DSP56309UM D MOTOROLA Figure D 25 Port E Registers PCRE PRRE PDRE D 39 ...
Страница 30: ...MOTOROLA DSP56309UM D 1 1 SECTION 1 DSP56309 OVERVIEW ...
Страница 47: ...1 18 DSP56309UM D MOTOROLA DSP56309 Overview DSP56309 Architecture Overview ...
Страница 48: ...MOTOROLA DSP56309UM D 2 1 SECTION 2 SIGNAL CONNECTION DESCRIPTIONS ...
Страница 85: ...2 38 DSP56309UM D MOTOROLA Signal Connection Descriptions OnCE JTAG Interface ...
Страница 86: ...MOTOROLA DSP56309UM D 3 1 SECTION 3 MEMORY CONFIGURATION ...
Страница 104: ...MOTOROLA DSP56309UM D 4 1 SECTION 4 CORE CONFIGURATION ...
Страница 124: ...MOTOROLA DSP56309UM D 5 1 SECTION 5 GENERAL PURPOSE I O ...
Страница 125: ...5 2 DSP56309UM D MOTOROLA General Purpose I O 5 1 INTRODUCTION 5 3 5 2 PROGRAMMING MODEL 5 3 ...
Страница 128: ...MOTOROLA DSP56309UM D 6 1 SECTION 6 HOST INTERFACE HI08 ...
Страница 166: ...MOTOROLA DSP56309UM D 7 1 SECTION 7 ENHANCED SYNCHRONOUS SERIAL INTERFACE ESSI ...
Страница 212: ...MOTOROLA DSP56309UM D 8 1 SECTION 8 SERIAL COMMUNICATION INTERFACE SCI ...
Страница 241: ...8 30 DSP56309UM D MOTOROLA Serial Communication Interface SCI GPIO Signals and Registers ...
Страница 242: ...MOTOROLA DSP56309UM D 9 1 SECTION 9 TRIPLE TIMER MODULE ...
Страница 269: ...9 28 DSP56309UM D MOTOROLA Triple Timer Module Timer Operational Modes ...
Страница 270: ...MOTOROLA DSP56309UM D 10 1 SECTION 10 ON CHIP EMULATION MODULE ...
Страница 302: ...MOTOROLA DSP56309UM D 11 1 SECTION 11 JTAG PORT ...
Страница 369: ...C 22 DSP56309UM D MOTOROLA DSP56309 BSDL Listing ...
Страница 370: ...MOTOROLA DSP56309UM D D 1 APPENDIX D PROGRAMMING REFERENCE ...
Страница 405: ......
Страница 409: ......