License

GPL 3.0

Tags
RC2014 Z80 SIO
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SIO Board for RC2014 - Addr Comp

1 year ago 355
  • Description
  • Documents
  • BOM
  • Attachments
  • Members
  • Comments

Description

SIO/2 Board for RC2014 backplane

  • 74ALS688 addr comparator for address decoding
  • Block of 8 addresses assigned
  • Arbitrary 8 address boundry
  • SIO at Addr 0 does not conflict with IDE at address 10H (Aka Grant Searle design)

Documents

SIO Board

SIO Board - Placement 1

SIO Board - REV A

BOM

ID Name Designator Footprint Quantity
1 USB 5V P4,P5 HDR-2X1/2.54 2
2 CHA Clk P7 HDR-3X1/2.54 1
3 CHB Clk P8 HDR-3X1/2.54 1
4 2.2K R7,R8 SIP-6 2
5 100nF C2,C3,C4 RAD-0.1 3
6 FTDI Slave CHA,CHB FTDI SLAVE SIDE 2
7 Oscillator 14 Pin DIP U3 OSCILLATOR_KXO-200 RECT FOOTPRINT 1
8 RC2014 Cheap Backplane P1 HDR-2.54-FX-1X36PW 1
9 74ALS688P U2 DIP-20-300-ELL 1
10 8 SW Dip SW VDG/S-08L-H-R 1
11 10KΩ R1 SIP-9 1
12 2.2KΩ R2,R3 AXIAL-0.4 2
13 Z80SIO-2 U1 DIP-40-600-ELL 1

Attachments

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