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1 EVPC2 Enhanced Video Processor Card Rev. 2.0 system 99 user group (snug) English hardware manual Installing and connecting Jumper settings Schematics and Layout

2 Date: 31. Januar

3 Table of contents History...5 New Features...5 Configuration...5 Jumper-Settings DSR-Socket... 6 Jumper-Settings VDP-Socket... 7 Jumper-Settings Video-Palette-Socket... 8 Jumper-settings for Sound-chip-Socket... 9 Jumper-settings for Interrupt-Line DIP-Switches Appendix A...12 CRU-Adresses CRU-output CRU-Adresses CRU-input Memory-Mapping Pagebits for DSR-EPROM Appendix B...15 Printed circuit board (pcb) Silk Screen: Layer Layer Drill Template Schematic 1 (root) Schematic 2 (Decoder and CRU Output) Schematic 3 (Power supply) Schematic 4 (output-multiplexer) Schematic 5 (Enhanced Color Palette) Schematic 6 (Flashrom/Eprom and NOVRAM) Schematic 7 (Bus-Interface) Schematic 8 (VDP, Video-RAM and Color buss) Appendix C...28 Pin-Assignment connector P How to connect a monitor to P Connect analog RGB-Monitors with SCART (EURO-AV)-connector

4 Connect analog RGB-Monitors with Sub-Min-D9-connector Connect analog FBAS-Monitor with RCA (Cinch)-connector Pin-Assignment for connector P1 (mouse/color buss) Appendix D...30 Technical Data connector P1 and P

5 History After 10 years, the system 99 user group, (snug) brings users a major revision of the EVPC video card. We fixed hardware bugs and added some new features. We also eliminated unused functions in the new design. This card belongs to the last projects of the snug, it has the blue LED as all blue-edition cards have. This card is one of the most complex cards and the layout work needed about 2 years! New Features The new card will support the good old V9938 as well as the modern V9958 VDP. All the VDP pins are jumpered and can be configured related to the installed VDP-type. The V9958 is very common in the US and offers a higher resolution of the built-in DAC. The V9958 does not have a mouse/light pen interface and does not support composite video-out, but it has a READY hardware circuitry and can handle timing control itself. The color-buss is supported by both types and is used by our expanded video color palette. The built in interrupt Register of the cards allows the DSR to detect if the VDP was the source or not. This feature now allows the card to use the EXTNIT-line of the P-BOX-buss instead of the VDPINT (LCP) we used for SGCPU ( snug-cpu ). The Video-Interrupt line is not available in console-port and flex-cable interfaces, so users of TI-console had to use an external cable for Video-interrupt in the past. Now the card does not need any external cabling for interrupt! For more information please read the DSR documentation. The socket for the DSR-chip is multi-functional. It also accepts EPROM, RAM or FLASH-EEPROM from pin and up to 512K*8bit sizes. The DSRLOADER V3.07 and higher revisions now allow for programming the DSR in-system if FLASH is installed! Configuration The card must be configured just before you install the card. All hardware related jumpers are set correctly in testing and you should NOT change them unless you replace some chips. The Jumper for V9938 or V9958 selection is set during testing and should not be modified by the end-user unless the type of VDP is changed. Also Jumpers for selection of 6-bit or 8-bit Color-Palette are pre-set during testing according to the chip that is installed. All Jumpers related to the DSR-socket are set to the chip which was installed at time of testing. If you install another chip you must modify them as described in the appendix

6 Jumper-Settings DSR-Socket JU2 JU5 Memory size Type Description K* S-RAM or Battery-RAM K*8 27C512 EPROM K*8 29C512 FLASH K*8 29C010 FLASH K*8 29C020 FLASH K*8 29C040 FLASH Note: Winbond, MOSEL and SST FLASH also possible, see DSR-Loader 3 documentation

7 Jumper-Settings VDP-Socket (Note: Pre-set during testing!) JP2 JP3 JU6 VDP-Type function (open) V9938 Mouse-interface 1-2 (open) 1-2 V9958 READY-circuit Warning: wrong set Jumper JP2 will blow VDP-chip!! - 7 -

8 Jumper-Settings Video-Palette-Socket (Note: Pre-set during testing!) JU1 JP1 Paletten-Chip Description AT76C176 6-bit, power-down-mode enabled AT76C176 6-bit, power-down-mode disabled ADV478 6-bit mode, no power-down mode 1-2 (open) ADV478 8-bit mode, no power-down mode Warning: wrong set Jumper JP1 will blow Palette chip AT76C176!!! ADV478 does not support power-down - 8 -

9 Jumper-settings for Sound-chip-Socket (Note: Pre-set during testing!) JU4 Sound-Chip Note 1-2 SN76489 SN76494 SN KHz 2-3 SN ,58MHz - 9 -

10 Jumper-settings for Interrupt-Line JU3 Bus-Pin Interrupt Note: EXTINT TI99/4a Console without external cable! (LCP) VDPINT Normal use for SGCPU open - No Currently not used

11 DIP-Switches See DSR-manual for specific information!

12 Appendix A CRU-Adresses CRU-output CRU (R12) MM30 Name Equates Description >1400 >0001 DEN DSRENA DSR Enable >1402 > >1404 >0004 ENCOL DSRCOB Enable Color Buss, 1 = Enable >1406 >0008 RAMEN NOVENA RAM Enable for NOVRAM, 1 = Enable >1408 > >140A > >140C >0040 STORE NOVSTO Store NOVRAM (SBO & SBZ pulsed = save) >140E >0080 MUX MUXPAL VDP / Palette, 0 = VDP, 1 = Palette >1410 >0100 SA2 EPROM paging bit (A13) LSB >1412 >0200 SA1 EPROM paging bit (A14) >1414 >0400 SA0 EPROM paging bit (A15) >1416 >0800 SA16 EPROM paging bit (A16) >1418 >1000 SA17 EPROM paging bit (A17) >141A >2000 SA18 EPROM paging bit (A18) MSB >141C >4000 INTCLR Clear/Disable Interrupt-Register, 1 = Clear & Disable >141E >8000 PGM Program bit, internal use CRU-Adresses CRU-input CRU (R12) MM30 Name Equates Description >1400 SW11 DIP1 Value of DIP-SW1 >1402 SW12 DIP2 Value of DIP-SW2 >1404 SW13 DIP3 Value of DIP-SW3 >1406 SW14 DIP4 Value of DIP-SW4 >1408 SW15 DIP5 Value of DIP-SW5 >140A SW16 DIP6 Value of DIP-SW6 >140C SW17 DIP7 Value of DIP-SW7 >140E SW18 DIP8 Value of DIP-SW8 >141C INTF Interrupt-Flag, 1 = VDP has caused Interrupt Memory-Mapping Adress Description >4000 to >5EFF DSR-ROM (8 to 64 times available, depending on size of chip installed) >5F00 to >5FEF NOVRAM if RAMEN is set, otherwise DSR-ROM >5FF0 Palette Read Address Register >5FF2 Palette Read Color Value >5FF4 Palette Read Pixel Mask >5FF6 Palette Read Address Register for Color Value >5FF8 Palette Write Address Register >5FFA Palette Write Color Value >5FFC Palette Write Pixel Mask >5FFE Palette Write Address Register for Color Value >84xx Write Sound Chip (even Adresses only and NOT Read) >88xx Read VDP (even Adresses only and READ) >8Cxx Write VDP (even Adresses only and NOT READ)

13 Page bits for DSR-EPROM The size of the DSR-ROM-chip is reduced by 16 or 256 bytes at the top depending of CRU-Bit >1406 (RAMEN). Bank SA18 SA17 SA16 SA0 SA1 SA2 MM 3.0 Adresse at EPROM Memory size installed >0001 >00000 to >01FFF All >0101 >02000 to >03FFF >0201 >04000 to >05FFF >0301 >06000 to >07FFF End 32K* >0401 >08000 to >09FFF >0501 >0A000 to >0BFEF >0601 >0C000 to >0DFEF >0701 >0E000 to >0FFEF End 64K* >0801 >10000 to >11FFF >0901 >12000 to >13FFF >0A01 >14000 to >15FFF >0B01 >16000 to >17FFF >0C01 >18000 to >19FFF >0D01 >1A000 to >1BFEF >0E01 >1C000 to >1DFEF >0F01 >1E000 to >1FFEF End 128K* >1001 >20000 to >21FFF >1101 >22000 to >23FFF >1201 >24000 to >25FFF >1301 >26000 to >27FFF >1401 >28000 to >29FFF >1501 >2A000 to >2BFEF >1601 >2C000 to >2DFEF >1701 >2E000 to >2FFEF >1801 >30000 to >31FFF >1901 >32000 to >33FFF >1A01 >34000 to >35FFF >1B01 >36000 to >37FFF >1C01 >38000 to >39FFF >1D01 >3A000 to >3BFEF >1E01 >3C000 to >3DFEF >1F01 >3E000 to >3FFEF End 256K*8-13 -

14 Page bits for DSR-EPROM (cont.) Bank SA18 SA17 SA16 SA0 SA1 SA2 MM 3.0 Adresse at EPROM Memory size installed >2001 >40000 to >41FFF 512K*8 chip only >2101 >42000 to >43FFF >2201 >44000 to >45FFF >2301 >46000 to >47FFF >2401 >48000 to >49FFF >2501 >4A000 to >4BFEF >2601 >4C000 to >4DFEF >2701 >4E000 to >4FFEF >2801 >50000 to >51FFF >2901 >52000 to >53FFF >2A01 >54000 to >55FFF >2B01 >56000 to >57FFF >2C01 >58000 to >59FFF >2D01 >5A000 to >5BFEF >2E01 >5C000 to >5DFEF >2F01 >5E000 to >5FFEF >3001 >60000 to >61FFF >3101 >62000 to >63FFF >3201 >64000 to >65FFF >3301 >66000 to >67FFF >3401 >68000 to >69FFF >3501 >6A000 to >6BFEF >3601 >6C000 to >6DFEF >3701 >6E000 to >6FFEF >3801 >70000 to >71FFF >3901 >72000 to >73FFF >3A01 >74000 to >75FFF >3B01 >76000 to >77FFF >3C01 >78000 to >79FFF >3D01 >7A000 to >7BFEF >3E01 >7C000 to >7DFEF >3F01 >7E000 to >7FFEF End 512K*8-14 -

15 Appendix B Printed circuit board (pcb) Silk screen on bareboard: yellow (yellow) Light green (light green) Light brown (light brown) Light blue (light blue) Dark green (dark green) = Jumper and Switches = Video-Palette-Chip = Sound-Chip = Video-Display-Processor (VDP) = DSR-memory

16 Silk Screen:

17 Layer

18 Layer

19 Drill Template

20 Schematic 1 (root)

21 Schematic 2 (Decoder and CRU Output)

22 Schematic 3 (Power supply)

23 Schematic 4 (output-multiplexer)

24 Schematic 5 (Enhanced Color Palette)

25 Schematic 6 (Flashrom/Eprom and NOVRAM)

26 Schematic 7 (Buss-Interface)

27 Schematic 8 (VDP, Video-RAM and Color buss)

28 Appendix C Pin-Assignment connector P2 Pin Name Description 1 GND Ground or Shield for sound 2 GND Ground or Shield for video 3 Red Analog RGB, red 4 Green Analog RGB, green 5 Blue Analog RGB, blue 6 Sound Sound output, analog 7 VCC +5 Volts 8 Sync Analog RGB, composite sync-signal 9 Mux Multiplexing for Pin 8, open or GND = Sync, +5V = FBAS How to connect a monitor to P2 The Output on connector P2 can support either analog monitors with RGB inputs or monitors with FBAS (also called composite-video ) input. See some examples below to connect a few common monitor types to your card (Phillips CM8802, CM8833 or 1084). Connect an analog RGB-Monitors with SCART (EURO-AV)-connector Pin Name Description SCART-Pin 1 GND Shield 21 2 GND Ground 4,5,9,13,18 3 Red Analog RGB, red 15 4 Green Analog RGB, green 11 5 Blue Analog RGB, blue 7 6 Sound Sound, analog 6, using 2-channel (CM8833 / 1084S) also SCART Not used, do not connect! 8 Sync Analog RGB, composite sync-signal Not used, do not connect! Connect an analog RGB-Monitors with Sub-Min-D9-connector Pin Name Description Monitor-Pin 1 GND Shield 1 2 GND Ground 2 3 Red Analog RGB, red 3 4 Green Analog RGB, green 4 5 Blue Analog RGB, blue 5 6 Sound Sound, analog Note: Must be wired externally. 7 VCC +5V Note: Monitor-Pin 6, if switching voltage needed. 8 Sync Analog RGB, composite sync-signal Not used, do not connect!

29 Connect an analog FBAS-Monitor with RCA (Cinch)-connector Pin Name Description RCA 1 GND Ground/Shield Shield FBAS-Jack (yellow) 2 GND Ground/Shield Shield Sound-Jack (white) 3 - Not used, do not connect! 4 - Not used, do not connect! 5 - Not used, do not connect! 6 Sound Sound, analog hot sound-jack (white) 7 VCC use resistor of Ohms connect to Pin 9 of P2 8 Sync Analog RGB, composite-video hot FBAS-Jack (yellow) 9 Mux as jumper wire! connect to Pin 7 vof P2 Note: modify DIP-switch on bare-board as described in DSR-manual!!! Available on V9938-cards only, V9958-cards do have RGB-output only! Pin-Assignment connector P1 (mouse/color-buss) Pin Name Description for V9938 for V C7 Color buss 2 C6 3 C5 4 C4 5 C3 6 C2 7 C1 8 C0 9 INT Interrupt-output 10 LPS/RDY LPS RDY 11 LPD/HRES LPD - 12 GND GND 13 SYCLK 447KHz output 14 GND GND 15 VCC +5V Note: V9958 will not support mouse/light-pen-interface (see Pin 10&11), color-buss only!!

30 Appendix D Technical Data connector P1 and P2 Analog RGB-Signals: 0,7Vpp/75Ω CVBS/FBAS (V9938 only): 1V +/- 0,5V/75Ω Video system: PAL/NTSC selected by software. Line-frequency : Hz fixed! Monitor must support this! For detailed information see technical Datasheet Yamaha V9938 or V9958! Sound: Digital Levels on P1: ca. 200mV/10KΩ TTL-Input, HC-MOS output