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Updated Z80 CPU Adapter (markdown)

David Banks 2019-10-23 16:07:15 +01:00
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14
Z80-CPU-Adapter.md

@ -7,19 +7,23 @@ Some photos of the completed Z80 CPU Adapter can be found [here](https://stardot
- [github](https://github.com/hoglet67/AtomBusMon/blob/dev/kicad/z80/v1/z80_adapter.pdf)
- [raw.githack.com](https://raw.githack.com/hoglet67/AtomBusMon/dev/kicad/z80/v1/z80_adapter.pdf)
Note: The above links point to the current dev branch
## Gerbers
- [github](https://github.com/hoglet67/AtomBusMon/blob/dev/kicad/z80/v1/manufacturing/manufacturing.zip)
- [raw.githack.com](https://raw.githack.com/hoglet67/AtomBusMon/dev/kicad/z80/v1/manufacturing/manufacturing.zip)
Note: The above links point to the current dev branch
## Bill of Materials
## Resistors
| Part Description | Supplier | Quantity | Part Ref | Notes |
|-------------------|----------|----------|----------|-------|
| 0R | [Farnell 2008388](https://uk.farnell.com/bourns/cr0805-j-000elf/res-0r0-5-0-125w-0805-thick-film/dp/2008388) | 2 | R11,R14 | min order 10 |
| 330R | [Farnell 2908405](https://uk.farnell.com/bourns/cr0805-fx-3300elf/res-330r-1-0805-thick-film/dp/2908405) | 3 | R7-R9 | min order 10 |
| 0R | [Farnell 2008388](https://uk.farnell.com/bourns/cr0805-j-000elf/res-0r0-5-0-125w-0805-thick-film/dp/2008388) | 1 | R14 | min order 10 |
| 330R | [Farnell 2908405](https://uk.farnell.com/bourns/cr0805-fx-3300elf/res-330r-1-0805-thick-film/dp/2908405) | 4 | R7-R9,R11 | min order 10 |
| 22K | [Farnell 2008386](https://uk.farnell.com/bourns/cr0805-fx-2202elf/res-22k-1-0-125w-0805-thick-film/dp/2008386) | 6 | R1-R6 | min order 10 |
Note: R10,R12,R13 should not be fitted
@ -31,7 +35,7 @@ Note: R10,R12,R13 should not be fitted
| 100nF 0805 multilayer ceramic | [Farnell 3013478](https://uk.farnell.com/samsung-electro-mechanics/cl21b104mbcnnnc/cap-0-1uf-50v-mlcc-0805/dp/3013478) | 12 | C1-12 | min order 10 |
| 10uF 0805 multilayer ceramic | [Farnell 2917914](https://uk.farnell.com/samsung-electro-mechanics/cl21a106koqnnne/cap-10uf-16v-mlcc-0805/dp/3013453)| 2 | C13-14 | min order 5 |
Note: C15 should not be fitted
Note: C15 should not be fitted.
Note: 10uF 16V 0805 Electrolitic can be used for C13/14, but be careful about orientation.
@ -75,6 +79,10 @@ Important Note: the following components should be not be fitted:
- R10,R12,R13
- C15
R10,11,12,13 configure a 4-bit ID value, used by the multi-boot loader to recognise the adapter board type. For the Z80 Adapter board, fit only R11. This can be any low value (<1KB) resistor. I would recommend 330R, as these are used elsewhere.
R14 and C15 provide an option for low pass filtering the clock signal. So far that has not proved necessary. So it's recommended to fit a 0R resistor for R14, and not fit C15 at all.
Components should be fitted in the following order:
- SMT ICs
- SMT Discretes