[MAME]

The Crystal of Kings
Brezza Soft Corporation (Japan), 2001

This game runs on a small cartridge-based PCB known as the 'Crystal System'
There are only two known games running on this system, Crystal of Kings and Evolution Soccer.
The main PCB is small (approx 6" square) and contains only a few components. All of the processing
work is done by the large IC in the middle of the PCB. The system looks a bit like IGS's PGM System, in
that it's housed in a plastic case and has a single slot for insertion of a game cart. However this
system and the game carts are approx. half the size of the PGM carts.
On bootup, the screen is black and the system outputs a vertical white line on the right side of the screen.
The HSync is approx 20kHz, the screen is out of sync on a standard 15kHz arcade monitor.
After approx. 15-20 seconds, the screen changes to white and has some vertical stripes on it and the HSync
changes to 15kHz. After a few more seconds the game boots to a white screen and a blue 'Brezza Soft' logo.
Without a cart plugged in, the screen stays at the first vertical line screen.

Main PCB Layout
---------------

Brezza Soft MAGIC EYES AMG0110B
  |----------------------------------------------------|
  |TDA1519   VOL     3.6V_BATT  SW1 SW2 SW3            |
|-|                                                    |
|                              DS1233                  |
|                                                |---| |
|                                       GM76256  |   | |
|        DA1133A                        |-----|  |   | |
|                HY57V651620  32.768kHz |MX27L|  |   | |
|                               DS1302  |1000 |  |   | |
|J                  |-------------|     |-----|  |   | |
|A                  |             |LED1          |   | |
|M                  |             |LED2          |CN1| |
|M      HY57V651620 | VRENDERZERO |              |   | |
|A                  |             |              |   | |
|                   |             |              |   | |
|                   |-------------| HY57V651620  |   | |
|                                                |   | |
|              14.31818MHz                       |   | |
|                              PAL               |---| |
|                                    TD62003           |
|-|                                                    |
  | |---------------| DSW(8)                           |
  |-|     CN2       |----------------------------------|
    |---------------|

Notes:
      GM76C256   : Hyundai GM76C256 32k x8 SRAM (SOP28)
      MX27L1000  : Macronix MX27L1000QC-12 128k x8 EEPROM (BIOS, PLCC32)
      PAL        : Atmel ATF16V8-10PC PAL (DIP20)
      HY57V651620: Hyundai HY57V651620 4M x16 SDRAM (SSOP54)
      DA1311A    : Philips DA1311A DAC (SOIC8)
      DS1233     : Dallas DS1233 master reset IC (SOIC4)
      DS1302     : Dallas DS1302 real time clock IC (DIP8)
      VRENDERZERO: MESGraphics VRenderZERO (all-in-one main CPU/graphics/sound, QFP240)
      SW1        : Push button reset switch
      SW2        : Push button service switch
      SW3        : Push button test switch
      TDA1519    : Philips TDA1519 dual 6W stereo power amplifier (SIP9)
      VOL        : Master volume potentiometer
      3.6V_BATT  : 3.6 Volt NiCad battery 65mAh (for RTC)
      TD62003    : Toshiba TD62003 PNP 50V 0.5A quad darlington switch, for driving coin meters (DIP16)
      CN1        : PCI-type slot for extension riser board (for game cart connection at 90 degrees to the main PCB)
      CN2        : IDC 34-way flat cable connector (purpose unknown)
      VSync      : 60Hz


Game cart PCB
-------------
Cart sticker: 'THE CRYSTAL OF KINGS      BCSV0000'
PCB printing: Brezza Soft MAGIC EYES AMG0111B
|------------------------------|
|                              |
|PIC16xxx?                     |
|           U8   U7   U6   U5  |
|3.57945Mhz                    |
|                              |
|                              |
|                              |
|                              |
|74HC138                       |
|           U4   U3   U2   U1  |
|                              |
|                              |
|                              |
|-|                          |-|
  |--------------------------|

Notes:
      The cart PCB is single sided and contains only...
      1x 3.579545MHz crystal
      1x 74HC138 logic chip
      1x 18 pin unknown chip (DIP18, surface scratched but it's probably a PIC16xxx, labelled 'dgSMART-PR3 MAGIC EYES')
      3x Intel E28F128J3A 128MBit surface mounted FlashROMs (TSOP56, labelled 'BREZZASOFT BCSV0004Fxx', xx=01, 02, 03)
         Note: there are 8 spaces total for FlashROMs. Only U1, U2 & U3 are populated in this cart.

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