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- This is a short description of the 65XX family of microchips that is
- available to the hobbits of today.
-
- (Hobbits is a contraction of two words Hobby and Bits. Within the
- spectrum of man it distinctively identifies an epoch.)
-
-
- 6502 Microprocessor 56 Commands plus an internal clock
- Rockwell NCR Runs at 1 to 4 MHZ
- Accumulator,X Register,Y Register
- Program Counter
-
- 6510 Microprocessor 56 Commands Documented,an internal
- Commodore clock,Many Undocumented Opcodes
- 6 bit I/O port,Accumulator,X Reg,
- Y Reg, I/O Register, 1 to 2 MHZ
-
- 8502 Microprocessor 56 Commands Documented, an
- Commodore internal clock, Many undocumented
- opcodes, 7 Bit I/O, X Reg, Y Reg,
- Accumulator, I/O Register, 1 to 2
- MHZ (8500 is similar?)
-
- 65C02 Microprocessor 68 Commands, Same Registers as
- Rockwell above, 1 to 4 MHZ speed, CMOS( Low
- power/Fast speed),additional
- addressing
-
- 65816 Microprocessor A 16/8bit processor, 16 Bit X,Y
- Western Design Center and Accumulator Registers,82+
- Commands, additional addressing,
- 2 MHZ?
-
- 6545 CRT (Cathode Ray Tube) A green monitor chip that
- Synertek address memory during the off 0
- cycle.
-
- 6520 Periperal Interface Adapter 2 (8 bit ports)with 4 Control pins
- Commodore and 2 IRQ lines
-
- 6522 Versatile Interface Adapter Same as 6520 but with a timer and
- Commodore serial to paralel shift register
- pulse counting capability
-
- 6526 Complex Interface Adapter 2 (8 bit ports),4 Control Pins,
- Commodore Time of Day Clock,Serial Port,
- pulse counting capability.
-
- 6560 vic Video display chips 40 Column
- 6560 vic ii Composite Monitor that have light
- 6567 vic ii pen,sprite,white noise,and other
- 6568 vic ii cabilities (40 Pins) Bitmap
- Commodore
- 8564 Vic chip No scroll capabilities,Mobs,Light
- Commodore Pens,Sprites,40 Column Composite
- Monitor, Multicolor,Bitmap
-
- 8563 VDC Chip A RGB Monitor chip designed for
- Commodore adaptability to about any monitor.
- 80 Column
- 8564 VDC Chip Same as above but with better
- Commodore display.
-
- 6532 Multifunction I/O Chip 2 8 Bit ports with Timers and Data
- Rockwell Direction Registers 128 Bytes of
- Ram
-
- 6551 Asyncronus Communications A standard serial I/O device with
- Rockwell CPU interface/controll serial
- input, serial output,modem
- controll
-
- 6581 Sound Interface Device 3 voice electronic noise generator
- 8580 Sound Interface Device 0-4khz,48db,2 analog/digital
- converters,29 registers (unknown
- upgrade capabilities to the 8580)
-
-
- Althouth it varies from manufacturer to manufacturer. The last letter
- in the name of a chip normally refers to the speed at which it
- operates. For example 6526A is a 2 MHZ version of the 6526 chip.
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