Laut dem MAME driver verwendet Cool Riders dafür ein batterieloses "RAMTRON FM1208S" FRAM (auf dem CPU Board) , vielleicht ist das hinüber.
https://git.redump.net/mame/tree/src...s/coolridr.cpp
Code:
SYSTEM-H1 CPU BD
171-6651A
837-10389
837-11481 (sticker)
|--------------------------------------------------------------|
| EPR-17662.IC12|
| |
| |--------| |--------| |
| |SEGA | |SEGA | FM1208S SEC_CONN |
| |315-5758| |315-5757| CN2 CN1 |
| | | | | |------| CN10|
| |--------| |--------| |SH7032| |
|CN8 | | |
| |------| |
| |
| PAL1 JP1 JP4 JP6 JP2 |
| PAL2 JP3 JP5 MB3771 |
| 28MHz 32MHz PC910 A1603C |
| DSW1 DAN803 |
|HM5241605 |--------| |--------| DAP803 |
|HM5241605 PAL3 |SEGA | |SEGA | |
| |315-5687| |315-5687| 315-5649|
| | | | | |
| |-----| TMP68HC000N-16|--------| |--------| |
| |SH2 | 514270 514270 |
| | | CN12 A1603C |
|CN7|-----| MB84256 TDA1386 TL062 CN11|
| 22.579MHz CN14 |
| MB84256 |
| |
| TDA1386 TL062 |
|--------------------------------------------------------------
Notes:
22.579MHz - This OSC is tied to pin 1 of a 74AC04 logic chip. The output from that (pin 2) is tied
directly to both 315-5687 chips on pin 14. Therefore the clock input of the YMF292's is 22.579MHz
514270 - Hitachi HM514270AJ-7 256k x16 DRAM (SOJ40)
68000 - Clock 16.00MHz [32/2]
A1603C - NEC uPA1603C Monolithic N-Channel Power MOS FET Array (DIP16)
CN7/8 - Connectors joining to ROM board (above)
CN10/11 - Connectors joining to Filter board
CN12/14 - Connectors for (possible) extra sound board (not used)
DAN803 - Diotec Semiconductor DAN803 Small Signal Diode Array with common anodes (SIL9)
DAP803 - Diotec Semiconductor DAP803 Small Signal Diode Array with common cathodes (SIL9)
DSW1 - 4-position DIP switch. All OFF
EPR-17662 - Toshiba TC57H1025 1M EPROM (DIP40)
FM1208S - RAMTRON FM1208S 4k (512 bytes x8) Nonvolatile Ferroelectric RAM (SOIC24)
HM5241605 - Hitachi HM5241605 4M (256k x 16 x 2 banks) SDRAM (SSOP50)
JP1-6 - Jumpers. JP2 open. JP5 1-2. All others 2-3
MB3771 - Fujitsu MB3771 Master Reset IC (SOIC8)
MB84256 - Fujitsu MB84256 32k x8 SRAM (SOP28)
PAL1 - GAL16V8B also marked '315-5800' (DIP20)
PAL2 - GAL16V8B also marked '315-5802' (DIP20)
PAL3 - GAL16V8B also marked '315-5801' (DIP20)
PC910 - Sharp PC910 opto-isolator (DIP8)
SEC_CONN - Sega security-board connector (not used)
SH7032 - Hitachi HD6417032F20 ROMless SH1 CPU (QFP112). Clock input 16.00MHz on pin 71
SH2 - Hitachi HD6417095 SH2 CPU (QFP144). Clock input 28.00MHz on pin 118
TDA1386 - Philips TDA1386T Noise Shaping Filter DAC (SOP24)
TL062 - Texas Instruments TL062 Low Power JFET Input Operational Amplifier (SOIC8)
Sega Custom - 315-5757 (QFP160)
315-5758 (QFP168) also marked 'HG62G035R26F'
315-5649 (QFP100) custom I/O chip (also used on Model 2A/2B/2C, but NOT vanilla Model 2)
315-5687 (QFP128 x2) also marked 'YMF292-F' (also used on Model 2A/2B/2C and ST-V)
Syncs - Horizontal 24.24506kHz
Vertical 57.0426Hz