Hello,
I'm trying to build a composite video generator as described in Don Lancaster's TV Typewriter Cookbook.
I've attached the diagram in question, but ignore the PLL circuitry for now. My questions only concerns the divide-by circuitry:
1. I'm assuming that each of the arrows coming off the counters symbolize data bits (e.g. 1,2,4,8 for the /64 counter). Am I correct in thinking that the counter will count up by '1' in binary, once every 64 clock pulses?
2. I'm assuming that the east-facing arrow coming out of the /64 and /264 counter is simply connected the the LSB of the counter output?
3. Could a /64 counter be built by connecting the MSB from a 4-bit counter to the input of another 4-bit counter, and then connecting the MSB of this counter to a third counter?
4. How would one build a divide-by-264 counter??
I apologize in advance for my stupidity
I'm trying to build a composite video generator as described in Don Lancaster's TV Typewriter Cookbook.
I've attached the diagram in question, but ignore the PLL circuitry for now. My questions only concerns the divide-by circuitry:
1. I'm assuming that each of the arrows coming off the counters symbolize data bits (e.g. 1,2,4,8 for the /64 counter). Am I correct in thinking that the counter will count up by '1' in binary, once every 64 clock pulses?
2. I'm assuming that the east-facing arrow coming out of the /64 and /264 counter is simply connected the the LSB of the counter output?
3. Could a /64 counter be built by connecting the MSB from a 4-bit counter to the input of another 4-bit counter, and then connecting the MSB of this counter to a third counter?
4. How would one build a divide-by-264 counter??
I apologize in advance for my stupidity
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