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hp_ipc.c: fix a couple of things (nw)

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Guru 2015-08-19 04:20:52 +08:00
parent ae73da2005
commit 55bb265107
1 changed files with 7 additions and 7 deletions
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14
src/mess/drivers/hp_ipc.c
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@ -50,8 +50,8 @@ HP Part# 00095-60953
|--------------------| |5 | | 68000 | |
| |0 | | | |
| MB81256 MB81256 |0 | |-------------------------| |
| |A--| |
| MB81256 MB81256 |
| |A | |
| MB81256 MB81256 |---| |
| |----------------J3-----------------| |
| MB81256 MB81256 | | |
| | | |
@ -123,15 +123,15 @@ HP Part# 00095-60952
Notes:
GPU - GPU (Graphics Processor) at U1. Clock input 3MHz [24/8]. VSync on pin 45, HSync on pin 46 (DIP48)
16Kx4 - 16Kx4 DRAM, organised as 32Kx8bit/16Kx16bit at U3, U4, U5 & U6. Chip type unknown, likely Fujitsu MB81416 (DIP18)
WD2797 - WD2797 Floppy Disk Controller at U18. Clock input 2MHz [24/2/3/2] (DIP40)
WD2797 - Western Digital WD2797 Floppy Disk Controller at U18. Clock input 2MHz [24/2/3/2] (DIP40)
HP-IL(1) - HP-IL 1LJ7-0015 'Saturn' Thinkjet Printer Controller IC at U28. Clock input 3MHz on pin 9 [24/8] (DIP48)
HP-IL(2) - HP-IL Interface IC at U31. Clock input 2MHz on pin 22 [24/2/3/2] (DIP28)
1Kb - 1Kb RAM at U27 for printer buffer (DIP28, type unknown, very old, with only DATA0,1,2,3, C/D and DIN,DOUT)
ROM - 16Kb (2Kx8) Some kind of very early DIP28 PROM/ROM? Same pinout as 1Kb RAM above. Holds the character font table for the printer
ROM - 16Kb (2Kx8?) Some kind of very early DIP28 PROM/ROM? Same pinout as 1Kb RAM above. Holds the character font table for the printer
Four versions of this ROM exist, one each for Japan/Arabic/Hebrew and one for all other regions
NS58167A - National Semiconductor NS58167A Clock Controller RTC at U44. Clock input 32.768kHz (DIP24)
LM358 - National Semiconductor LM358 Operational Amplifier at U40 (DIP8)
LM393 - Texas Instruments LM393 Dual Comparator (DIP8)
LM393 - Texas Instruments LM393 Dual Comparator at U34 (DIP8)
BT1 - 3v lithium battery
COP452 - National Semiconductor COP452 Speaker Controller at U39. Clock input 2MHz [24/2/3/2]. This IC provides programmable square wave output from 100Hz to 5000Hz (DIP14)
TMS9914 - Texas Instruments TMS9914 General Purpose Interface Bus Adapter at U41. Clock input 4MHz [24/2/3] (DIP40)
@ -186,7 +186,7 @@ Note this PCB plugs in upside-down on top of the Operating System ROM PCB
| |
|----------------J3-----------------|
Notes:
J1/J2 - 20 pin connector joining to 'Option ROM PCA'
J1/J2 - 20 pin connector joining to 'Operating System ROM PCA'
J3/J4 - 20 pin connector joining to 'LOGIC A PCA'
U1-U4 - 28 pin EPROM/MASKROM 0L/1L/0H/1H (note 1Mbit: 128Kx8 28 pin)
@ -355,5 +355,5 @@ ROM_START(hp_ipc)
ROM_END
COMP(198?, hp_ipc, 0, 0, hp_ipc, hp_ipc, driver_device, 0, "HP", "Integral Personal Computer", MACHINE_IS_SKELETON)
COMP(1985, hp_ipc, 0, 0, hp_ipc, hp_ipc, driver_device, 0, "HP", "Integral Personal Computer", MACHINE_IS_SKELETON)