Baffa Homebrew Projects

Baffa-2 Clock

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The clock is the heart of the computer. It is what determines the time for each instruction and synchronization between the computer's circuits. This card provides two clock channels to Baffa-2 Computer: The clock 1 generates main timefor the CPU and peripherals of the computer. The clock 2 generates a differente speed to control secondary peripherals.

Dual Clock

Dual Clock


Settings

CLOCK1(pin21) / CLOCK2(pin43)
|8888888881 = 7.3728Mhz115200bps
8|888888882 = 3.6864Mhz57600bps
88|88888883 = 2.4576Mhz38400bps
888|8888886 = 1.2288Mhz19200bps
8888|888888 = 0.9216Mhz14400bps
88888|888812 = 0.6144Mhz9600bps
888888|88824 = 0.3072Mhz4800bps
8888888|88Slow = approx 6-10hz
88888888|8Manual
888888888|External
EXTRA_CLKS
pin11.8434Mhz28800bps
pin20.4609Mhz7200bps
pin30.1536Mhz2400bps
RESET1(pin38) / RESET2(pin42)
=oRESET
o=/RESET
SPDT_SWITCH
pin1on
pin2GND
pin3on
EXT_CLK_MODULE
pin1GND
pin2VCC
pin5External Clock Input


Related Files:


Related Datasheets:



Related Projects:



Related Revisions:

  • Jul/2023 Rev.1
    * Added socket to Active Oscillators

  • Nov/2021 Prototype


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