archive:programming:model100
[INLINE] TRS-80 Model 100 Page _____________________________________________________________________________________________________________________ This is on overview and specs on the TRS-80 Model 100 portable computer. _____________________________________________________________________________________________________________________ Radio Shack's TRS-80 Model 100 is a portable computer equipped with built-n software to perform a variety of useful tasks such as text preparation, schedule and address organizing, and telecommunications. Additionally, Model 100 has the following standard features: * Enhanced version of Microsoft BASIC * Full-size typewriter style keyboard * LCD with seven lines by 40 columns * Built-in modem * Built-in cassette interface * Built-in bar code reader interface * Parallel printer interface Other features available are: real time clock and calendar, upper and lowercase characters, and RAM internally expandable to 32K bytes.
Specifications
Main Components Keyboard * 27 Number keys 10 Picture- control keys 7 Function keys 8 Special symbol keys 8 Mode keys 5 Other special- use keys 6 LCD display Display panel 240 x 64 Full- Dot matrix 1/32 duty 1/6.66 bias pot pitch 0.8 x 0.8 mm Dot size 0.73 x 0.73 mm Effective display area 191.2 x 50.4 mm Operation batteries Batteries Four AA alkaline- manganese batteries Operation time 5 days (at 4 hours/day) \20 days (at I hour/day) Note: I/O is disconnected. Memory protection battery (on Main PCB) Battery Rechargeable Protection time About 40 days (8 KB) About 10 days (32 KB) Recharge method Trickle charge by AC adaptor, or operation batteries LSls CPU 80C85 Code and pin compatible with 8085 ROM Max. 64 KB (2 banks of 32 KB) Standard 32 KB Option 32 KB RAM Max. 32 KB Standard 8 KB RAM pack Incremental 8 KB RAM pack on PCB Clock Calendar aPD1990AC No leap year/no February 29
I/O Interface
RS- 232C (conforms to EIA Standard)
Signal
TXR (Transmit Data)
RXR (Receive Data)
RTS (Request to Send)
CTS (Clear to Send)
DSR (Data Set Ready)
DTR (Data Terminal Ready)
Communications protocol
Word length
6, 7, or 8 bits
Parity
NON, EVEN, or ODD
Stop Bit length
1 or 2 bits
Baud rate
75, 110, 300, 600, 1200, 2400,4800, 9600, 19200 BPS
Max. transmission distance 5m
Driver max. voltage output +- 5V
Driver min. voltage output +- 3.5V
Receiver max. voltage input +- 18V
Receiver min. voltage input +- 3V
Modemlcoupler (conforms to BEL103 standards)
Baud rate 300 BPS
Programmable items:
Data length 6, 7, or 8 bits
Parity NON, EVEN, or ODD
Stop bit I or 2 bits
Full duplex Answer/call switchable mode
Other functions Hang- up and auto- dialer
Audio cassette interface
Data rate 1500 BPS (MARK: 2400 Hz, SPACE: 1200 Hz)
Printer interface (conforms to Centronics interface standards)
Handshake signal STROBE, BUSY, BUSY
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M100 | M200 | M102
Last Modfied: 3/96
Init: 1/5/96
Created by: Andy Diller
/home/gen.uk/domains/wiki.gen.uk/public_html/data/pages/archive/programming/model100.txt · Last modified: 2001/04/20 20:33 by 127.0.0.1