diff options
| author | 2016-11-24 12:35:17 +1100 | |
|---|---|---|
| committer | 2016-11-24 12:35:17 +1100 | |
| commit | a524c9e19cdeb5023541e8a3e0761ea2c56d285a (patch) | |
| tree | 11ae3b6ead3ce5ae809922f31c809488270861c3 /src | |
| parent | 2a590ad3c940482c02e035bb5eab8e2e122ec06a (diff) | |
| parent | ce2585a0751c8657eb536745bf29aacc936beff8 (diff) | |
Merge pull request #1760 from Asayuki-K/master
Clock frequencies in bionicc.cpp
Diffstat (limited to 'src')
| -rw-r--r-- | src/mame/drivers/bionicc.cpp | 33 |
1 files changed, 29 insertions, 4 deletions
diff --git a/src/mame/drivers/bionicc.cpp b/src/mame/drivers/bionicc.cpp index c36ebafe9ce..97e602ffaf3 100644 --- a/src/mame/drivers/bionicc.cpp +++ b/src/mame/drivers/bionicc.cpp @@ -11,14 +11,37 @@ Graphics ROM board: 86612-B-2 Program ROM board: 86612-C-2 - Main CPU: 68000CP10 - Sound CPU: Z80A - MCU: Intel C8751H-88 + Main CPU: 68000CP10 @ 24MHz / 2 = 12MHz + Sound CPU: Z80A @ 14.31818 / 4 = 3.579545MHz + MCU: Intel C8751H-88 @ 24MHz / 4 = 6MHz Sound Chip: YM2151 & YM3012 OSC: 24.000 MHz (on the 86612-B-2 PCB) Custom: CAPCOM DL-010D-103 (on the 86612-B-2 PCB) - + Horizontal scan rate: 15.606kHz + Vertical scan rate: 60.024Hz + + pixel clock: 6.000MHz, 166ns per pixel + + htotal: 64.076us, 386 pixels + hsync: 5.312us, 32 pixels + back porch + sync: 15.106us, 91 pixels + active video: 42.662us, 257 pixels (it looks like the first pixel is repeated) + front porch: 6.308us, 38 pixels + + vtotal: 16.660ms, 260 lines + vsync: 256.304us, 4 lines + back porch + sync: 1.282ms, 20 lines + active video: 14.353ms, 224 lines + front porch: 1.025ms, 16 lines + + Clocks verified on 86612-A-2 and 86612-B-2 boards, serial no. 39646 + ("Bionic Commando", US region) by scope measurement at clock pins. + Timings verified at SYNC pin and BLUE pin (jamma edge), + using an Agilent DSO9404A scope and two N2873A 500MHz probes + + Note: Protection MCU is labelled "TS" without a number and without a coloured + stripe. Maybe its code is not region dependant. Note: Euro rom labels (IE: "TSE") had a blue stripe, while those labeled as USA (TSU) had an red stripe on the sticker. The intermixing of TSE and TSU roms in the parent set is correct and verified. @@ -349,6 +372,8 @@ static MACHINE_CONFIG_START( bionicc, bionicc_state ) MCFG_CPU_PROGRAM_MAP(main_map) MCFG_TIMER_DRIVER_ADD_SCANLINE("scantimer", bionicc_state, bionicc_scanline, "screen", 0, 1) + /* Protection MCU Intel C8751H-88 runs at 24MHz / 4 = 6MHz */ + MCFG_CPU_ADD("audiocpu", Z80, XTAL_14_31818MHz / 4) /* EXO3 C,B=GND, A=5V ==> Divisor 2^2 */ MCFG_CPU_PROGRAM_MAP(sound_map) /* FIXME: interrupt timing |
