VIA Technologies Apollo Pro133A Design Manual page 8

Technologies, Inc.
Design Guide - VT82C694X Apollo Pro133 with VT82C686A
We Connect We Connect
Figure 2-54. AC'97 Link Example.............................................................................................................................................. 62
Figure 2-55. MIDI/Game Port Application Circuit .................................................................................................................... 62
Figure 2-56. Hardware Monitoring Application Circuit............................................................................................................. 63
Figure 2-57. System Management Bus Interface ........................................................................................................................ 65
Figure 2-58. ISA Bus SA[15:0] / SDD[15:0] Sharing Circuitry.................................................................................................. 66
Figure 2-59. IDE Interfaces Layout Guidelines.......................................................................................................................... 67
Figure 2-60. Ultra DMA/66 Placement and Routing Example.................................................................................................... 68
Figure 2-61. Ultra DMA/66 Application Circuit ......................................................................................................................... 69
Figure 2-62. Suspend DRAM Refresh Application Circuit .......................................................................................................... 70
Figure 2-63. STR State Power Plane Control Application Circuit .............................................................................................. 71
Figure 3-1. CPU Read from SDRAM (SL=2) ............................................................................................................................. 73
Figure 3-2. CPU Post Write to SDRAM (SL=2) ......................................................................................................................... 74
Figure A-1. VT82C686A SPKR Pin Transistor Driver Solution (I) ............................................................................................. 97
Figure A-2. VT82C686A SPKR Pin Inverter Driver Solution (II)................................................................................................ 97
Figure B-1. AC'97 Audio Codec and Game/MIDI Port Block Diagram...................................................................................... 99
Figure B-2. AC'97 Audio Codec and GAME/MIDI Port Placement Example ........................................................................... 100
Figure B-3. Ground Layer Layout Example ............................................................................................................................. 103
Figure B-4. Power Layer Layout Example ............................................................................................................................... 104
Figure B-5. Component Layer Layout Example ....................................................................................................................... 106
Figure B-6. Solder Layer Layout Example ............................................................................................................................... 106
Figure C-1. Apollo Pro133A Reference Component Placement ................................................................................................ 110
Preliminary Revision 0.5, November 19, 1999 ii List of Figures