ZiLOG Z80 series Bedienungsanleitung
Z80
Z80 PIO
PIO Module
Module
For
For RC2014
RC2014
User
User Guide
Guide
For
For module:
module: SC103
SC103 version
version 1.0
1.0
Design andDocumentation by Stephen C Cousins Edition 1.0.0
1
CONTENTS
OVERVIEW................................................................................................................2
PRINTED CIRCUIT BOARD............................................................................................. 3
SCHEMATIC...............................................................................................................4
WHAT YOU NEED.......................................................................................................5
COMPONENTS: WHAT THEY DO& WHERE TOGET THEM..................................................7
ASSEMBLY GUIDE.....................................................................................................15
CONFIGURING THE PIO MODULE.................................................................................26
ADDRESS SELECTION................................................................................................. 27
PURCHASING THE PRINTED CIRCUIT BOARD....................................................................29
FAULT FINDING........................................................................................................31
HISTORY.................................................................................................................32
CONTACT INFORMATION............................................................................................33
2
Overview
The Z80 PIOmodule (SC103) provides two 8-bit parallel ports with handshakingand
flexible input and output connectivity, as well as support for Z80 mode 2 interrupt
daisychaining.
Each port haseight bidirectional data linesand two handshaking lines. The PIO has
flexible interruptgeneration and fully supports Z80mode 2 interrupts.
For full details of the Z80 PIO see the Zilogdata sheet.
3
Printed Circuit Board
The printed circuit board is a standard footprint RC2014 board.
Printed circuit board,top/component side:
Printed circuit board,bottom/solder side:
4
Schematic
Errata
Version 1.0 of the PCB has the RC2014 IEI (pin 38) and IEO (pin 39) incorrectly
labelled.The labels are incorrectly shownnext to pins37 and 38, not38 and 39.
Also port A I/O linesare not correctly labelled on the back of the board. The labels
on the frontof the board are correct though.
5
What You Need
The following components are required to assemble the module. Header pins JP1
and JP2,and P1 to P4 may need to be cut from longerstrips.
Image Qty Reference Description
1PCB Printed circuit board SC103 Z80 PIO
4C1, 2, 3, 4 Capacitor 100nF, ceramic, leadspacing = 2.54mm
1C5 Capacitor 100uF, electrolytic, lead spacing =
2.54mm (radial) or 14mm (axial)
1JP1 and JP2 Pin header, male, 2 rows x 2 pins, straight
2JP1 and JP2 Jumper shunt for pinspacing = 2.54mm
1P1 Pin header, male, 2rows x 39 pins, angled (2nd
rowoptional)
1P2 Pin header, male, 2rows x 13 pins, angled
1P3 Pin header, male, 1row x 29 pins, angled
1P4 Pin header, male, 1row x 2 pins, angled
1RP1 Resistor pack 8x10k, SIL, 9-pin
1SW1 DIP switch,6 way, piano style
1U1 74HCT688, 8-bit identity comparator, PDIP 20
1U1 socket 20 pin PDIP IC socket 0.3" wide
6
1U2 Z80 PIO, 8MHz, Z84C2008PEG (or Z80PIO, 10MHz,
Z84C2010PEG), PDIP40
1U2 socket 40 pin PDIP IC socket 0.6" wide
1U3 74HCT08, quad2-input AND gate
1U3 socket 14 pin PDIP IC socket 0.3" wide
Also required to assemble the module from the above components:
Long
nose
pliers
Side cutters
Solderingiron
Solder
PCB cleaningmaterials
7
Components: What They Do & Where To Get Them
Each componentis described below. I have listed multiple sources for most
components, but have not actually tried all of them,so best treat the specified part
numbers as guidance only.Where eBay is listed as a supplier, the part is likely to be
cheaper there than the other sources, sometimes considerably cheaper. Further
savings are usually possible by ordering parts direct from countries like China.
PCB
Image Qty Reference Description
1PCB Printed circuit board SC103 Z80 PIO
Supplier Partnumber
EasyEDA SearchEasyEDA.comfor RC2014 PIO
The PCB is currently only availableto be ordered from EasyEDA.com, although you
can download the Gerber and send it to your preferred manufacturer.
C1, 2, 3, 4
Image Qty Reference Description
4C1, 2, 3, 4 Capacitor 100nF, ceramic, leadspacing = 2.54mm
Supplier Partnumber
Farnell 1100533
Mouser 75-1C10Z5U104M050R
RS 699-5027
These capacitors provide power supply decoupling(or bypass). The fast switching in
digitalcircuits createsspikes on the power supplylines which are suppressed with
decoupling capacitors placed at key points on the circuit board.
8
C5
Image Qty Reference Description
1C5 Capacitor 100uF, electrolytic, lead spacing =
2.54mm (radial) or 14mm (axial)
Supplier Partnumber
Farnell 9452478 (100uF, 16V,radial)
Mouser 140-REA101M1CBK0611P (100uF, 16V,radial)
RS 711-0933 (100uF, 16V, radial)
This capacitor provides suppression of transientson the power supply. The PIO
modulemay well be used to power and control external electronics, in which case
there couldbe significant transients generated on the supply lines. Where possible
supply transients should be suppressedat source, so this component shouldnot be
critical.
The PCB allows for a radial or axial capacitors. In order to build a low profile board,
the capacitor should lay on its side. An axial capacitor would be most secure in this
configuration, but there is limited length allocated and you probably don’t have one!
JP1 and JP2
Image Qty Reference Description
1JP1 and JP2 Pin header, male, 2 rows x 2 pins, straight
Supplier Partnumber
eBay 200906546562 (2x40 pin to be cut to length)
Farnell 2356151 (2x40 pin to be cut to length)
Mouser 710-61308021121 (2x40 pin to be cut to length)
RS 155-721 (2x40 pin to be cut to length)
This pairof jumpers allow the interrupt daisy chain signals to be connected to the
RC2014 bus signalUSER 2 (pin38) and USER 3 (pin39). To makeuse ofthis feature
you must use a backplane that is specifically designed to provide the necessary daisy
chain,such as Backplane SC107. The current official RC2014 backplanes do not
supportthis feature.
Alternativelythe signals IEI and IEO can be foundon connector P2 on the backedge
of the board. Dupont wires can be used to daisy chain these signals to other
modules.
9
JP1 and J2
Image Qty Reference Description
2JP1 and JP2 Jumper shunt for pinspacing = 2.54mm
Supplier Partnumber
eBay 201261690156
Farnell 2396303
Mouser 649-68786-102LF
RS 674-2397
These shunts (smallsockets) connect the required pins on JP1 and J2.
P1
Image Qty Reference Description
1P1 Pin header, male, angled, 2-row x 39-pin, 2 row (1
rowoptional)
Supplier Partnumber
eBay 200906546562 (2x40 pin to be cut to length)
Farnell 1097962 (2x40 pin to be cut to length)
Mouser 571-9-103795-0 (2x40 pin to be cut to length)
RS 155-743 (2x40 pin to be cut to length)
This connector mateswith the RC2014 bus backplane. You can fit a single or a
double row header. The only reasons for the secondrow is to provide additional
power supply pins, make the modulethe same height as the othersand to increase
stability of the module.
Somepins need to be removed, using a pair of pliers, before fitting.
Andere Handbücher für Z80 series
3
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1
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