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-
- SB180 Spec Sheet
-
-
- The MICROMINT SB180 computer packs a lot of computing power in
- a very small package! The SB180, only 4" by 7 1/2", offers a Z-80
- compatible CPU running at 6 MHz, 256K bytes of RAM, up to 32 K bytes of
- ROM, two serial ports, a parallel port, expansion bus, and an industry
- standard 765A-compatible disk controller for up to four disk drives -
- any combination of 3 1/2", 5 1/4", or 8" drives. Whether you use the
- SB180 as the basis for a complete disk based computer system or use its
- 32K of ROM space for a battery-powered dedicated controller application
- program, you will appreciate its ability to run standard 8080/8085 and
- Z-80 software at up to twice the speed of a 4 MHz Z-80.
-
- The SB180 uses the most powerful of the new generation 8 bit
- CPUs - the Hitachi HD64180. The HD64180 is based on a microcoded
- execution unit and advanced CMOS manufacturing technology. It provides
- the benefits of high performance, reduced system cost and low power
- operation while maintaining complete compatibility with the large base
- of standard CP/M software. Performance of the HD64180 derives from it
- high clock speed, instruction pipelining, and an integrated Memory
- Management Unit (MMU) with 512K bytes memory address space. The
- instruction set is a superset of the Z80 instruction set; twelve new
- instructions include hardware multiply and a SLEEP instruction for low
- power operation. System costs are reduced because many key system
- functions have been included on-chip. Besides the MMU, the HD64180
- boasts a two channel Direct Memory Access Controller (DMAC), wait state
- generator, dynamic RAM refresh, two channel Asynchronous Serial
- Communication Interface (ASCI), Clocked Serial I/O port (CSI/O), two
- channel 16-bit Programmable Reload Timer (PRT), a versatile 12 source
- interrupt controller, and a "dual" (68xx and 80xx families) bus
- interface.
-
- Because the SB180 uses the Z80 instruction set, it can run CP/M
- 2.2, CP/M Plus, Z-System, MP/M II, TurboDOS, and Oasis operating
- systems. These operating systems can be custom configured to make use
- of the 256K bytes on board memory for enhanced performance. And
- popular program development tools for these operating systems - BASIC,
- FORTRAN, Pascal, PL/1, C, Forth, assembler, etc. - are widely
- available; thousands of proven application programs will work, too!
-
- TECHNICAL SPECIFICATIONS
-
- PROCESSOR
-
- * Hitachi HD64180, an 8-bit CPU on a 64 pin chip
- * Superset of Z-80 instruction set, including hardware multiply
- * Integrated Memory Management Unit with 512K bytes address space
- * Dynamic RAM refresh
- * Wait state generator
- * Clocked serial I/O port
- * 2 channel Direct Memory Access Controller
- * 2 channel Asynchronous Serial Communication Interface
- * 2 channel 16-bit Programmable Reload Timer
- * 12 interrupts
- * Dual bus interface to 68xx and 80xx support chips
- * 6.144 MHz system clock
-
- MEMORY
-
- * 256K bytes dynamic RAM on board
- * Either an 8K 2764, 16K 27128, or 32K 27256 EPROM usable
- * Optional full function 8K ROM monitor
-
- INPUT/OUTPUT
-
- * Console I/O RS-232 serial port with auto-baud rate select to 19,200 baud
- * Peripheral RS-232 serial port, full handshaking, 150-19200 baud
- * Line printer parallel I/O port
- * 19-bit address decoding, I/O port decoding, and dual bus interface
- brought out to expansion bus connector
-
- FLOPPY DISK INTERFACE
-
- * Uses Standard Microsystems 9266 disk controller chip
- * Compatible with NEC 765A controller
- * On-chip digital data separator
- * Can control 3 1/2", 5 1/4" and 8" drives - up to 4 in any combination
- * Handles both FM encoded (single density) and MFM encoded (double
- density) data
-
- POWER SUPPLY REQUIREMENTS
-
- * + 5 volts +/- 5% @ 300 mA (all CMOS); @ 500 mA (TTL)
- * +12 volts +/- 20% @ 40 mA (plus disk drive requirements)
-
-
- DIMENSIONS AND CONNECTIONS
-
- * 4" by 7 1/2" board with mounting holes
- * 20 pin DIP header for RS-232C serial console I/O
- * 20 pin DIP header for RS-232C serial peripheral port
- * 20 pin DIP header for parallel port line printer
- * 34 pin header for 3 1/2" or 5 1/4" floppy disk
- * layout for 40 pin and 8 pin headers (unpopulated) for I/O expansion bus
- * layout for 50 pin header (unpopulated) for 8" floppy disks
-
- OPERATING CONDITIONS
-
- * temperature: 0-50 C (32-122 F)
- * relative humidity: 10-90% relative humidity, non-condensing
-
-
- The Micromint ROM Monitor
-
- The ROM monitor provided with the SB180 is a complete set of
- utilities and debugging aids in an 8K byte PROM which supports four I/O
- "devices":
-
- CON: - Console RS-232 serial port
- AUX: - auxillary RS-232 serial port
- CEN: - Centronics parallel printer port
- DSK: - floppy disk storage device
-
- Monitor Commands include:
-
- A - ASCII table: prints an ASCII code table
- B - Bank select: selects a 64K memory bank
- C - Copy disk: systems with 256K RAM can perform single drive copies
- D - Display memory: displays memory in hex and ASCII
- E - Emulate terminal: console keyboard is echoed to the auxillary RS-232
- output, and the RS-232 input is echoed on the console display
- F - Fill memory: any portion of memory is filled with a data byte
- G - Goto program: starts program execution at specified address and
- optionally includes a breakpoint
- H - Hexmath: prints the 20 bit sum and difference and 32 bit product
- of the two arguments
- I - Input port: prints the 8-bit data input from specified port
- K - Klean disk: formats a specified drive
- M - Move memory: moves a block of memory
- N - New command: enables new commands from extended ROM space
- O - Output port: byte is output to specified port address
- P - Printer select: toggles printer selection between the Centronics
- parallel port and the auxillary RS-232 port
- Q - Query memory: searches memory for pattern of 1 to 4 bytes
- R - Read Disk: reads specified sectors from drive into memory
- S - Set memory: displays memory contents and allows new data to be
- entered
- T - Test system: tests various system devices
- U - Upload hex file: uploads Intel hex file from auxillary or console
- serial port
- V - Verify memory: compares two blocks of memory
- W - Write disk: writes specified sectors to disk from memory
- X - eXamine CPU registers: displays main and alternate CPU registers
- and prompts for modification of main registers
- Y - Yank I/O registers: displays the 64180 on-chip I/O registers
- Z - Z-System boot: boots the Z-System DOS from disk
-
-
- Z-SYSTEM DISK OPERATING SYSTEM
-
- The Z-System is an enhanced 8-bit operating system which is a
- complete replacement for CP/M 2.2 from Digital Research. Any of the
- thousands of application programs, languages, or utilities which run
- under CP/M will also run under Z-System. Z-System is a more advanced,
- more convenient operating environment than CP/M, with many utility
- programs which give the user more consistent, easier access to its
- features. Named directories are provided rather than disk drive
- designators and user areas. Multiple commands may be entered on the
- command line. A sophisticated "search path" is implemented for
- programs and files. Input/output redirection is supported. Password
- protection for directory access is available, and user privilege levels
- for commands can be provided. Z- System has been customized to make
- use of the SB180's expanded instruction set, making it very fast and
- extremely efficient.
-
- Comparison of the SB180's Z-System, CP/M-80, and MS-DOS
-
- Feature Z-System CP/M 2.2 MS-DOS
-
- Software compatible with CP/M 2.2 yes yes no
- No warm boot required when changing disks yes no yes
- Multiple commands per line yes no no
- Named directories yes no yes
- Password protection for directories yes no no
- Dynamically variable user privilege levels yes no no
- for commands
- Searching of alternate directories for yes no partial
- invoked programs and files
- Terminal-independent video capabilities yes no no
- Input/output redirection yes no yes
- Conditional testing and execution at the yes no no
- operating system level (IF/ELSE/ENDIF)
- Shells and menu generators with shell yes no no
- variables
- Tree-structured on-line help and yes no no
- documentation subsystem
- 512 megabyte file sizes, 8 gigabyte disks yes no no
- Complete error trapping with recovery, yes no no
- customizable messages and prompts
- Screen-oriented file manipulation and yes no no
- automatic archiving and backup
- Full screen command line editing with yes no no
- previous command recall and execution
-
-
- ***********************************************************************
- The following items are available from:
-
- The Micromint Inc.
- 25 Terrace Drive
- Vernon, Conn. 06066
-
- phone: (800) 635-3355 for orders
- (203) 871-6170 for information
-
- Item 1 SB180 computer board w/256K bytes of RAM.
- Complete with user's manual and ROM Monitor.
- Assembled and Tested order SB180-1 ...$369.00
-
- Item 2 SB180 boot disk. Contains Z system with limited utilities and
- BIOS. Provided on 5 1/4" SB180 format DSDD diskette.
- order SB180-10 ...$ 49.00
-
- Item 3 Z System including ZRDOS, ZCPR2, an editor and utilities, ZAS
- assembler and ZDM debugger. Complete with manuals. Provided on
- four 5 1/4" SB180 format DSDD diskettes.
- order SB180-20 ...$190.00
-
- Item 4 HD64B180 chip (6 MHz) with data manual and
- 12.288 MHz Xtal ...$50.00
-
- Item 5 BYTE Readers Special ---- Complete SB180 computer board w/256K
- of RAM, User's manual, ROM Monitor, and all the software
- listed in Item 3.
- Assembled and Tested order SB180-1-20 ..$499.00
-
- All boards are complete with the exception of the 50 pin 8 inch drive
- header which is not populated and optionally available. Printer, Disk,
- and terminal cables available separately. Call for pricing.
-
- Please include $10 ($7 less on Item 4) for shipping and handling in the
- continental United States. $18 elsewhere. Connecticut residents please
- include 7 1/2 percent sales tax.
- **********************************************************************
-
- residents please
- include 7 1/2 percent sales tax.
- **********************************************************************
-