7-20
DSP56309UM/D MOTOROLA
Enhanced Synchronous Serial Interface (ESSI)
ESSI Programming Model
7.4.2.12
CRB ESSI Mode Select (MOD) Bit 13
MOD selects the operational mode of the ESSI; see
on page 7-23. When MOD is cleared, normal mode is
selected; when MOD is set, network mode is selected. In normal mode, the frame rate
divider determines the word transfer rate: one word is transferred per frame sync during
the frame sync time slot. In network mode, a word can be transferred every time slot. For
more details, see
. Either a hardware RESET signal or a
software RESET instruction clears MOD.
Figure 7-12
CRB SYN Bit Operation
External Frame SYNC
SC1
Asynchronous (SYN = 0)
Transmitter
Clock
Frame
SYNC
RECEIVER
Clock
Frame
SYNC
SRD
STD
SC2
External Transmit Frame SYNC
External Receive Frame SYNC
Internal Frame SYNC
SC0
SC
External Transmit Clock
External Receive Clock
Internal Clock
ESSI Bit
Clock
NOTE: Transmitter and receiver can have different clocks and frame syncs.
SYNCHRONOUS (SYN = 1)
Transmitter
Clock
Frame
SYNC
Receiver
Clock
Frame
SYNC
SRD
STD
SC2
Internal Frame SYNC
SCK
External Clock
Internal Clock
ESSI Bit
Clock
NOTE: Transmitter and receiver can have the same clock frame syncs.
AA0682
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: ......