|
gptkbp:instance_of
|
gptkb:microprocessor
|
|
gptkbp:addressed
|
multiple addressing modes
|
|
gptkbp:application
|
home computers
|
|
gptkbp:architecture
|
8-bit
|
|
gptkbp:bus_connections
|
multiplexed address/data bus
|
|
gptkbp:clock_speed
|
3.0 MHz
|
|
gptkbp:community_support
|
TI user groups
|
|
gptkbp:compatibility
|
gptkb:TMS9900_family
|
|
gptkbp:data_bus_width
|
16 bits
8 bits
|
|
gptkbp:data_transmission
|
8-bit data transfer
|
|
gptkbp:design_purpose
|
cost-effective computing
|
|
gptkbp:designed_by
|
gptkb:Texas_Instruments
|
|
gptkbp:development
|
gptkb:TI-99_series
1970s
|
|
gptkbp:development_tools
|
gptkb:TI_assembler
|
|
gptkbp:end_of_life
|
gptkb:1983
|
|
gptkbp:ended
|
hobbyists
|
|
gptkbp:evaluates
|
available for developers
|
|
gptkbp:features
|
integrated I/ O ports
|
|
gptkbp:has_documentation
|
datasheets available
|
|
gptkbp:historical_significance
|
early home computer CPU
|
|
gptkbp:history
|
part of TI's microprocessor line
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
TMS9939
|
|
gptkbp:input_output
|
parallel I/ O
|
|
gptkbp:instruction_set
|
fixed-length instructions
4 clock cycles
TI-99 instruction set
|
|
gptkbp:integration
|
integrated peripherals
|
|
gptkbp:interrupts
|
hardware interrupts
|
|
gptkbp:legacy
|
gptkb:TI-99/4_A_software
influenced later microcontrollers
TI-99/4 A home computer
|
|
gptkbp:manufacturer
|
gptkb:Texas_Instruments
|
|
gptkbp:market_segment
|
consumer electronics
|
|
gptkbp:marketed_as
|
TI-99/4 A CPU
|
|
gptkbp:memory_type
|
up to 64 KB
|
|
gptkbp:notable_feature
|
programmable I/ O
|
|
gptkbp:packaging
|
gptkb:DIP
|
|
gptkbp:performance
|
moderate performance
|
|
gptkbp:power_consumption
|
low
|
|
gptkbp:predecessor
|
gptkb:TMS9900
|
|
gptkbp:programming_language
|
Assembly language
|
|
gptkbp:ram
|
gptkb:CD-ROM
gptkb:memory
|
|
gptkbp:registration
|
16 general-purpose registers
|
|
gptkbp:related_to
|
gptkb:TMS9900
|
|
gptkbp:released_in
|
gptkb:1979
|
|
gptkbp:successor
|
gptkb:TMS9995
gptkb:TMS9980
|
|
gptkbp:type
|
gptkb:microprocessor
|
|
gptkbp:used_in
|
gptkb:TI-99/4_A
|
|
gptkbp:bfsParent
|
gptkb:TMS9960
|
|
gptkbp:bfsLayer
|
7
|