Sprinter/mame
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

cdc721: Almost certainly runs at 6 MHz (nw)

Browse Source
This commit is contained in:
AJR 2018-03-25 10:59:34 -04:00
parent 463eb4be9b
commit 8e2275c44a
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/mame/drivers/cdc721.cpp
View File

@ -193,7 +193,7 @@ static const z80_daisy_config cdc721_daisy_chain[] =
MACHINE_CONFIG_START(cdc721_state::cdc721)
// basic machine hardware
MCFG_CPU_ADD("maincpu", Z80, 4000000)
MCFG_CPU_ADD("maincpu", Z80, 6_MHz_XTAL) // Zilog Z8400B (Z80B)
MCFG_CPU_PROGRAM_MAP(mem_map)
MCFG_CPU_IO_MAP(io_map)
MCFG_Z80_DAISY_CHAIN(cdc721_daisy_chain)
@ -215,7 +215,7 @@ MACHINE_CONFIG_START(cdc721_state::cdc721)
MCFG_DEVICE_ADD("crtc", CRT5037, 12.936_MHz_XTAL / 8)
MCFG_TMS9927_CHAR_WIDTH(8)
MCFG_DEVICE_ADD("ctc", Z80CTC, 4000000)
MCFG_DEVICE_ADD("ctc", Z80CTC, 6_MHz_XTAL) // Zilog Z8430B
MCFG_Z80CTC_INTR_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0))
MCFG_DEVICE_ADD("ppi", I8255A, 0)