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Sharp MZ-800 Service Manual

Sharp MZ-800 Manual Online:

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Sharp MZ-800 User Manual
Sharp MZ-800 User Guide
Sharp MZ-800 Online Manual

Text of Sharp MZ-800 User Guide:

  • I MZ-800 4-2-5. Scroll 1) Scrolling is possible for both horizontal and vertical directions by means of software offset. The following four registers are use~ for scroll control. a. Scroll start address register: SSA (7-bit) b. Scroll end address register: SEA (7-bit) c. Scroll width register: SW = SEA-SSA (7-bit) d. Scroll of

  • Sharp MZ-800, 4-2-3. Clock generator and timing generator Oscillation from the crystal oscillator is divided to create the CPU clock, horizontal sync, vertical sync, and dis- play address control signals. Since the low state of signal is used for NTPL (NTSCI PAL selection) with the MZ-800, the CPU clock of 3.547 MHz is derived from the crystal frequency of 17.734 MHz by dividing it 1/5. NTPl 1>-----' CK32 (112) 001 (114) To displ.-v .dd ..... generator Clock generat

  • Sharp MZ-800, MZ-800 4-2-8. Pallet • As there are four 4-bit pallet registers provided inside the unit, it permits choice of R, G, B, and I combina- tions, and it enables to make choice of any desired two or four colors out of sixteen available colors. However, in the 320 x 200, 16-color mode, choice of colors permitted to four kinds of colors output of sixteen. • Only the conventional mode is applicable MZ-700 mode without using pallet. for the • Pallet is not applicable for the border color. <Configuration> Pallet

  • Sharp MZ-800, MZ-800 4-3. Graphic mode commands 4-3-1. Command type In the graphics mode, the computer can control the printer with the following commands. The words in parentheses are BASIC statements which have the same functions as the graphics mode commands. Command name Format Function LINE TYPE Lp (p=O to 15) Specifies the type of line (solid or dotted) and the dot pitch. p = 0 : solid line, p = I to 15 : dotted line ALL INITIALIZE A Places the printer in the text mode. HOME (PHONE) H Lifts the pen and returns it to the origin (home position). INITIALIZE (HSET) I Sets the current pen loca

  • Sharp MZ-800, MZ-800 4-2-10. ROM configuration The MZ-700 monitor, character generator (eG), MZ-800 monitor, and IPL are implemented on a single chip of 16k x 8-bit ROM. ROM add .... soooo $1000 $2000 $3000 $3FFF ,..-------. $0000 MZ-700 monitor ~----~ $1000 CG MZ-800 IPL & monitor 4-3. 8255 Programmable Peripheral Interface The 8255 has three pairs of 8-bit lID ports, each one can be assigned to input or output port by means of programming. A different mapping is established de- Port name (address) Pin

  • Sharp MZ-800, MZ-800 VRAM to CPU interface • As the CRTC bus is completely separated from the CPU bus, read and write of the VRAM is carried out through the CRTC. Therefore, interfacing with the CPU is done via the read register or write register in the CRTC. • VRAM access by the CRTC is done under the pseudo cycle steal mode. • Not only read and write are for the accessing with the CPU, it permits to read multiple number of screen data logical operational results and to write the read-modif

  • Sharp MZ-800, MZ-800 Concept of the scroll control circuit Scroll method • Scrolling by means of VRAM address conversion. Range of scroll • y-axis programmable. BASIC console command compatible • x-axis fixed Scroll sequence • The scroll start address is termed "SSA" and end address "SEA". • Execution of scroll, with offset given from the CPU. • One line (line S) starting from SSA disappears from the display screen. • A new line (line S') is added to

  • Sharp MZ-800, MZ-800 b) Write format register (WR) (OUT & CC) • WMD 0 - 2 ..... Selects the logical operational mode for read- modify-write . • B/A (NOTE) Standard MZ-800 ---> "0": Frame A access ..... • I, Il, rn, IV ..... Frame A is accessed for the display mode. "1": Frame B access ..... Color plane designation Frame B is accessed for the display mode. Write mode '2 1 0 IV ill IT VD : VRAM data WMD B/",: Color plane Function [WD: Write data 1 -SINGLE-- . +- 0 0 1 0 (*) 0/1 -~ 0/1- -----lc~~~I-;ne of;;1~WD, wri;--------- WRITE ~ 320 x 200, i Color plane of &qu

  • Sharp MZ-800, 4. COlOR PLOTTER-PRINTER CONTROL CODES 4-1. Control codes used in the text mode • Text code ($01) Places the printer in the text mode. MZ-800 • Graphic code ($02) ................................................ Same as the BASIC PMOOE statement. Places the printer in the graphics mode. • Line up ($03) .......................................................... Same as the BASIC PSKIP statement. Moves the paper one line in the reverse direction. The line counter is decremented b

  • Sharp MZ-800, SHARP SERVICE MANUAL CODE: OOZMZ8OOIIIIE PERSONAL COMPUTER MODEL MZ-800 MZ-1P16 MZ-1E20 Table of contents t, Specification .. 2. Parts identification .. 3. Systemdiegram .. 4. Systemdescriplion .. 4·', Memorymep .. 4-2. CustomLSI ..... 4-2-1. Memoryconlroller ... 4-2-2. VOcontroller .. 4-2-3. Clock generator end timing generator .. 4-2-4. Display address generator ... 4-2-5. Scroll control circuit ..... . .................................... 4 ................................................... 6 .. 9 9 9 .

  • Sharp MZ-800, 4-2-7. Register functions VRAM configuration • One or two chips of 16 KB VRAM are used. • In the case of a single 16 KB VRAM chip, it handles 320 x 200 dots, 4 colors, or 640 x 200 dots 1 color. • In the case of two 16 KB VRAM chips, it handles 320 x 200 dots, 16 colors, 640 x 200 dots, 4 colors, 320 x 200 dots, 4 colors, 2 frames, or 640 x 200 dots, 1 color, two frames. * Discussed next are about functions of

  • Sharp MZ-800, MZ800 • Index PARTS CODE NO. PRICE NEW PART RANK MARK RANK PARTS CODE NO. PRICE NEW PART RANK MARK RANK (C 1 QCNCM1038ACZZ 3- 8 AM C CCABBI006ACZA 10- I AM N 0 QCNCM1056ACZZ 1- 29 AG C -CC A B B I 0 (8 A C Z B 2- I AS 0 QCNCM2414RC2F 11- 3 AH C CCOVHI002ACZB 1- I AQ 0 QCNCW1008AC03 1- 15 AC C cTrATIOOIACZA 10- 4 AK N 0 QCNCW1013ACZZ 3- 7 AC C CSFTZIOOIACZZ 10- 7 AH E QCNCW1270CC2J 3- 9 AE C ---Tor-- I DSOCN034 4 PAZ Z 5- 13 AF C QCNW 1012ACZZ 11- 4 AL C QCNW 1013ACZZ 10- 15 AD C D U "f'(T-~ I 4 0 9 A C ZZ 1-

  • Sharp MZ-800, Scroll and and control circuit hardware • Block diagram Start address SEA-SOF 10 DA(MA) 10 7 SEA DA(MA) 7 Scroll width SOF c Scroll offset Relation of display address. SEA. SSA. vs SOF Display address m I k j i SSA SSA SSA SSA SSA SSA 6 5 4 3 2 SEA SEA SEA SEA SEA SEA 6 5 4 3 2 SOF SOF SOF SOF SOF SOF 9 8 7 6 5 Screen left end address o Line 0 0 0 0 0 1 Line 0 0 0 0 0 2 Line 0 0 0 0 0 3 Line 0 0 0 0 0 8 Line 0 0 0 0 1 16 Line 0 0 0 0 24 Line 0 0 0 1 192 Lin

  • MZ-800 Pin name Pin No. 1/0 Signal name TNT 23 0 Interrupt Request Ao-A, 15-12 1/0 Port A Bus 10- 7 ASTB 16 I Port A Strobe ARDY 18 0 Register A Ready I Bo-B, 27-34 1/0 Port B Bus BSiB 17 I Port B Strobe f---- BRDY 21 0 Register B Ready I I For the MZ-800 the PlO located on the 1/0 space, and address of ports performs

  • c) Example of CPU read/write access • Shown next are access examples of REPLACE write, PS ET write, and SEARCH read in the 320 x 200, 16-color mode. As for display colors, Plane I corresponds to 8, IT to R, ill to G, and IV to I. MZ-800 CD REPLACE write • To develop light yellow characters on the graphic screen

  • (Ex.) An example of the pallet in use in the 320 x 200, 16-color mode • Assume that the pallet register has been set to the following. l PL TO = Black PLT1 = Cyan PLT2 = Red PL T3 = Magenta • When SWo is set to "0" and SW, to "0", the pallet is applied to four colors in group 1 (ill =

  • MZ-800 800 MODE (640 X 200 dot) DISP. cycle -I· CPU cycle -I· DISP. cycle VRAS ,'--- ___ ----~I \~-- __ ----_~I \'----- VCAS \'---~/ ''---~ \~-----------~ \'----- VOE ,'-------/ , VAD 0 - 7 ~ ROW X'__ __ CO_L_. ----'X'__ __ C_O_L._~'C~'__ ______ _:_--~X X'- __ --,--_ '---;

  • Sharp MZ-800, MZ800 [l] CPU Board Unit NO. PARTS CODE PRICE NEW PART DESCRIPTION RANK MARK RANK 1 LBSHZ2029SCZZ AB C Bushing 2 QCNCM1009ACZB AA C Connector (2pin) 3 QCNCM1009ACZi AC C Connector (9pin) 4 QCNCM1009ACZL AC C Connector for Colour encoder (l2pin) 5 QCNCM1009ACZO AC C Connector (15pin) 6 QCNCM1010ACZZ AF C Connector for Power supply (For power supply) 7 QCNCW1013ACZZ AC C Connector for Recorder (For da ta recorder) 8 QCNCM1038ACZZ AM C Connector (JAE 50P) 9 QCNCW1270CC2J AE C Connector for Key 10

  • Sharp MZ-800, MZ800 [[] Power Supply Unit NO. PARTS CODE PRICE NEW PART DESCRIPTION RANK MARK RANK 1 pco VS 0181 V A Z Z AG C Case (B) 2 P CO VS 0215 P A Z Z AF C Case~A~ 3 P Z E T i 002 1 P A Z Z AE C Barrier 4 LBNDCOO08PAZZ AA C Wire band 5 X B B SM 20 P 0 6 0 0 0 AA C Screw (2X6) 6 X B BSC 3 0 P 0 6 000 AA C SCrew (For heat sink INLE"Q(3X6j 7 XBPSC30P06KOO AA C Screw (For switch)(3 X 6) 8 X B P S D 3 0 P 0 8 0 0 0 AA C Screw (For heat sink) 9 X B P S D 4 0 P 0 8 K S 0 AA C

  • Sharp MZ-800, MZ800 [l2J MZ-l P16 Packing Parts ,3 ,5 [l MZ-l E20 NO, PARTS CODE PRICE NEW PART DESCRIPTION RANK MARK RANK 1 LANGT1080ACZZ AK N C PWB angle 2 SPAKA1589ACZZ AE N 0 Packing cushion 3 SPAKC1590ACZZ AT N 0 Packing case 4 SSAKH3010CCZZ AA 0 Poly bag (180 x 240nn) 5 T 5 ELF 1 0 0 2 A C Z Z AA 0 label 6 XBPSD30P06KSO AA C Screw (3X6KS) • -15-

  • Sharp MZ-800, MZ-800 Table-2 Display mode vs read format register Display mode SRCH/SING B/A IV m n Function (NOTE) --------------r---------------+--------+---------~----~----_+----_r----~--------------------__i Single color data read 320 x 200. 4116 colors 640 x 200. 1/4 colors Frame A: "0" o Frame B: "1" o o o Plane I data read o o o Plane n data read ~--~-----+-----+----~----------------------- o o o Plane m data read o o o Plane IV data read -----------~--------------~

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