Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-20 15:32:45 +03:00
Code Issues Actions 6 Packages Projects Releases Wiki Activity

Added guru readme (nw)

Browse Source
This commit is contained in:
Wilbert Pol 2015-08-18 20:16:53 +02:00
parent 43e4d38a6f
commit 80edc2ffa6
1 changed files with 255 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

311
src/mess/drivers/hp_ipc.c
View File

@ -2,16 +2,262 @@
// copyright-holders:
/******************************************************************************
HP Integral Personal Computer (IPC) skeleton driver
Interrupt levels:
7 - Soft reset from keyboard
6 - Real-time clock or NBIR3 (external)
5 - Disc drive or NBIR2 (external)
4 - GPU or NBIR1 (external)
3 - HP-IB, printer, or NBIR0 (external)
2 - HP-HIL devices (keyboard, mouse, etc)
1 - Real-time clock
Integral Personal Computer (HP9807A)
Hewlett-Packard, 1985
This is a portable mains-powered UNIX workstation computer system produced by Hewlett-Packard and launched in 1985
Basic hardware specs are....
- 68000 CPU at 7.96MHz
- 9" amber electro-luminescent display with a resolution of 255*512 pixels or up to 85 characters x 31 lines (default=80*24) with
dedicated 32Kb display memory
- Internal 3.5" floppy disk drive with the following specification....
Encoding: Double Density HP MFM Format
Rotational speed: 600 RPM
Transfer speed: 62.5kB/second
Capacity: 709Kb (709632 bytes)
Bytes per sector: 512
Sectors per track: 9
Total tracks per surface: 80, Available: 77, Spare: 2, Wear: 1
Surfaces: 2
Interleave: 1
- HP ThinkJet ink-jet printer integrated into the top of the case. This is a modified HP2225B Thinkjet printer
- 90-key detachable keyboard
- ROM: up to 512Kb standard and an additional 512Kb of option ROM
- RAM: 512Kb, arranged as 256Kbx16. RAM is expandable externally to 7Mb
- Real Time Clock
- Speaker
- External I/O bus with two I/O ports for interfaces and memory modules. Expandable to maximum 10 ports with two 5-port Bus Expander Modules
- HP-IB (IEEE-488) bus
- Runs the HP-UX Operating System III or System V (in ROM)
PCB Layouts
===========
CPU/Memory Board (LOGIC A PCA)
----------------
HP Part# 00095-60953
|---------------------------------------------------------------------------------|
| 15.92MHz J1 J2 |
|LS74 |
| |---| |
| |T | |
| |M | |
| |S | |
| |4 | |-------------------------| |
|--------------------| |5 | | 68000 | |
| |0 | | | |
| MB81256 MB81256 |0 | |-------------------------| |
| |A--| |
| MB81256 MB81256 |
| |----------------J3-----------------| |
| MB81256 MB81256 | | |
| | | |
| MB81256 MB81256 | | |
| | | |
| MB81256 MB81256 | | |
| | | |
| MB81256 MB81256 | | |
| |----------------J4-----------------| |
| MB81256 MB81256 |
| U58 U60 |
| MB81256 MB81256 555 |
| |
| |
| |
| J5 J6 J7 |
|------------------------------------------------------------------------------------------------------|
Notes:
68000 - 68000 CPU at U7. Clock input 7.96MHz [15.92/2] (DIP64)
LS74 - 74LS74 at U2 provides system clock dividers /4 /2
MB81256 - Fujitsu MB81256 256Kx1 DRAM. Total RAM 512Kx8/256Kx16. HP part# 1818-3308. U20-U35 (DIP16)
TMS4500 - Texas Instruments TMS4500A DRAM Controller at U4. Clock input 3.98MHz [15.92/4] (DIP40)
U58 - HP-HIL Keyboard Interface 'Cerberus'. Clock input on pin 24 is unknown (DIP24)
U60 - Unknown IC used as an interrupt encoder. Possibly a logic chip? (DIP20)
555 - 555 Timer
J1/J2 - Connectors joining to LOGIC B PCA (logic A to logic B bus)
J3/J4 - Connectors for ROM board
J5 - Power input connector from power supply PCB
J6 - 64-pin external I/O bus. This is connected to the I/O backplane PCB mounted at the rear of the case using a ribbon cable
J7 - 10 pin connector. Labelled on schematics as LOOP0 In/Out and LOOP1 In/Out. Connected to 'Cerberus' IC. Possibly for more input devices?
Interface & Control Board (LOGIC B PCA)
-------------------------
HP Part# 00095-60952
00095-60107 BD REV A
00095-60149 ASSY LOGIC B
|---------------------------------------------------------------------------------|
|SPEAKER NS58167A J11 J10 |
| LM358 32.768kHz |
| |
| 16Kx4 16Kx4 16Kx4 16Kx4 |
| ROM |
| |
| BT1 HP-IL(2) GPU |
| |--------------------|
| 1Kb |
| COP452 |
| |
| |
| WD2797 |
| LM393 HP-IL(1) |
| |
| LS193 |
| |
| |
| |
| LS74 24MHz LS161 |
| J2|
| |
| TMS9914 |
| |
| |
| 75162 75160 |
| |
| J14 J6 J5 J4 J3 J7 J1 J8 J9 J12 |
|------------------------------------------------------------------------------------------------------|
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)
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
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)
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)
75160 - National Semiconductor DS75160A IEEE-488 General Purpose Interface Bus Transceiver at U42 (DIP20)
75162 - National Semiconductor DS75162A IEEE-488 General Purpose Interface Bus Transceiver at U43 (DIP22)
LS193 - 74LS193 at U9 provides the main system clock dividers /8 /4 /2 (24MHz -> 12MHz, 6MHz, 3MHz). This is also the source of the 6MHz video clock on connector J1
LS161 - 74LS161 at U46. Takes 12MHz clock input on pin 2 and outputs 4MHz on pin 13 (i.e. /3). This is the clock source for the TMS9914
LS74 - LS74 at U16. Takes output of 4MHz from LS161 at U46 and outputs 2MHz on pin 5 (i.e. /2). This is the source of the 2MHz clocks
J1 - Connector joining to video display assembly
J2 - Connector joining to floppy drive
J3 - Connector joining to printer front switch panel assembly (ADV/CONT/FF/ATTN)
J4 - Connector joining to printer out of paper switch connected to ATTN
J5 - Connector joining to printer carriage motor
J6 - Connector joining to printer mechanism assembly including paper motor
J7 - Connector joining to printer printhead
J8 - Connector joining to HO?E switch (? ~ M, text unreadable on schems)
J9 - Connector for ?
J10/J11 - Connectors joining to LOGIC A PCA (logic A to logic B bus)
J12 - Power input connector from power supply PCB
J14 - Fan connector
ROM board (Operating System ROM PCA. Assembly# HP82991A or HP82995A)
---------
|----------------J3-----------------|
| |
| |
| |
|J1 U1 U2 U3 U4 J2|
| |
| |
| |
|----------------J4-----------------|
Notes:
J1/J2 - 20 pin connector joining to 'Option 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)
ROM board (Option ROM PCA)
---------
Note this PCB plugs in upside-down on top of the Operating System ROM PCB
|----------------J4-----------------|
| |
| |
| |
|J1 U1 U2 U3 U4 J2|
| |
| |
| |
|----------------J3-----------------|
Notes:
J1/J2 - 20 pin connector joining to 'Option 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)
Physical Memory Map
===================
000000-07FFFF - Internal ROM (Operating System PCA 512Kb)
080000-0FFFFF - Internal ROM (Option ROM PCA 512Kb)
100000-4FFFFF - External ROM modules (up to 4Mb)
500000-5FFFFF - Reserved 1Mb
600000-6FFFFF - Internal I/O 1Mb
Address Port Use
-------------------------
600000-60FFFF 0 MMU
610000-61FFFF 1 Disk Drive
620000-62FFFF 2 Display
630000-63FFFF 3 HP-IB
640000-64FFFF 4 RTC
650000-65FFFF 5 Printer
660000-66FFFF 6 Keyboard
670000-67FFFF 7 Speaker
680000-68FFFF 8 Reserved
690000-69FFFF 9 Reserved
6A0000-6AFFFF 10 Reserved
6B0000-6BFFFF 11 Reserved
6C0000-6CFFFF 12 Reserved
6D0000-6DFFFF 13 Reserved
6E0000-6EFFFF 14 Reserved
6F0000-6FFFFF 15 Reserved
700000-7FFFFF - External I/O 1Mb
Address Port Use
-------------------------
700000-70FFFF 16 Mainframe Port A
710000-71FFFF 17 Mainframe Port B
720000-72FFFF 18 Bus Expander Port A1
730000-73FFFF 19 Bus Expander Port A2
740000-74FFFF 20 Bus Expander Port A3
750000-75FFFF 21 Bus Expander Port A4
760000-76FFFF 22 Bus Expander Port A5
770000-77FFFF 23 Reserved
780000-78FFFF 24 Reserved
790000-79FFFF 25 Reserved
7A0000-7AFFFF 26 Bus Expander Port B1
7B0000-7BFFFF 27 Bus Expander Port B2
7C0000-7CFFFF 28 Bus Expander Port B3
7D0000-7DFFFF 29 Bus Expander Port B4
7E0000-7EFFFF 30 Bus Expander Port B5
7F0000-7FFFFF 31 Reserved
800000-EFFFFF - External RAM modules (up to 7Mb)
F00000-F7FFFF - Internal RAM 512Kb
F80000-FFFFFF - Reserved 512Kb
Access to 800000-FFFFFF can be remapped by the MMU registers.
Interrupts
----------
High Priority 7 - Soft reset from keyboard (NMI)
/\ 6 - RTC or NBIR3 (external I/O)
|| 5 - Disc Drive or NBIR2 (external I/O)
|| 4 - GPU or NBIR1 (external I/O)
|| 3 - HP-IB, printer or NBIR0 (external I/O)
\/ 2 - HP-HIL devices (keyboard/mouse)
Low Priority 1 - RTC
Note external interrupt lines NBIR0 to NBIR3 can be asserted by an interface connected to the external I/O port
******************************************************************************/
@ -41,53 +287,6 @@ private:
};
/*
Physical Address Map:
000000 - 07FFFF Internal ROM (operating system PCA)
080000 - 0FFFFF Internal ROM (option ROM PCA)
100000 - 4FFFFF External ROM modules
500000 - 5FFFFF Reserved
600000 - 6FFFFF Internal I/O
600000 - 60FFFF MMU
610000 - 61FFFF Disc Drive
620000 - 62FFFF Display
630000 - 63FFFF HP-IB
640000 - 64FFFF Real-Time Clock
650000 - 65FFFF Printer
660000 - 66FFFF Keyboard
670000 - 67FFFF Speaker
680000 - 68FFFF Reserved
690000 - 69FFFF Reserved
6A0000 - 6AFFFF Reserved
6B0000 - 6BFFFF Reserved
6C0000 - 6CFFFF Reserved
6D0000 - 6DFFFF Reserved
6E0000 - 6EFFFF Reserved
6F0000 - 6FFFFF Reserved
700000 - 7FFFFF External I/O
700000 - 70FFFF Mainframe Port A
710000 - 71FFFF Mainframe Port B
720000 - 72FFFF Bus Expander Port A1
730000 - 73FFFF Bus Expander Port A2
740000 - 74FFFF Bus Expander Port A3
750000 - 75FFFF Bus Expander Port A4
760000 - 76FFFF Bus Expander Port A5
770000 - 77FFFF Reserved
780000 - 78FFFF Reserved
790000 - 79FFFF Reserved
7A0000 - 7AFFFF Bus Expander Port B1
7B0000 - 7BFFFF Bus Expander Port B2
7C0000 - 7CFFFF Bus Expander Port B3
7D0000 - 7DFFFF Bus Expander Port B4
7E0000 - 7EFFFF Bus Expander Port B5
7F0000 - 7FFFFF Reserved
800000 - EFFFFF External RAM modules
F00000 - F7FFFF Internal RAM
F80000 - FFFFFF Reserved
All accesses to 800000-FFFFFF go through the "MMU" to form a final physical address
*/
static ADDRESS_MAP_START(hp_ipc_mem, AS_PROGRAM, 16, hp_ipc_state)
AM_RANGE(0x000000, 0x07FFFF) AM_ROM
AM_RANGE(0x600000, 0x60FFFF) AM_WRITE(mmu_w)