Table of Contents

ECB-ModPrn

ecb-modprn-r11.jpg

Introduction

ECB-ModPrn is a board:

Changes from R02 to R03:

- replacement of DIP-switches to jumper

- some little correction (IC10 powering)

- optimization of the look-ahead-carry logic

Special thanks to Fabio Batagglia. His tests of R02 where an absolute great effort of this board and showed that the hardware is an runnable and usable design. Thank You so much!

The design of R03 will be published in the beginning of 2016 when I´m back from hospital. New testers and builders are warmly welcome!

File List

FilenameFilesizeLast modified
druck.asm5.6 KiB2015/11/02 00:01
ecb-modprn-r02.zip2.3 MiB2015/11/01 03:50
ecb-modprn-r03-gerber.zip112.9 KiB2015/11/02 00:04
ecb-modprn-r03.brd.pdf682.5 KiB2015/11/02 00:11
ecb-modprn-r03.sch.pdf198.4 KiB2015/11/02 00:11
ecb-modprn-r03.zip381.6 KiB2015/11/01 03:49
ecb-modprn-r11.jpg92.8 KiB2015/11/01 03:58
ecb-modprn.zip962.3 KiB2015/11/02 00:04
fig10.jpg110.1 KiB2015/11/01 03:49
printing_ecb-modprn-r1-brd.pdf655.1 KiB2015/11/02 00:04
printing_ecb-modprn-r1-sch.pdf148.2 KiB2015/11/02 00:04
printing_ecb-modprn-r2-brd.pdf758.5 KiB2015/11/01 03:49
printing_ecb-modprn-r2-sch.pdf172.6 KiB2015/11/01 03:49
printing_ecb-modprn-r3-brd.pdf747.0 KiB2015/11/01 03:50
printing_ecb-modprn-r3-sch.pdf194.2 KiB2015/11/01 03:50
z53c80.lib1.9 KiB2015/11/02 00:01
z80dma.lib1.9 KiB2015/11/02 00:01
z80sio.lib2.0 KiB2015/11/02 00:01
z8581.lib1.2 KiB2015/11/02 00:01

Specifications

General

Serial Interface

fig10.jpg

RS232 interface

J1 SIO/0 or DART port A

J2 SIO/0 or DART port B

Hardware documentation

Schematics

printing_ecb-modprn-r3-sch.pdf

PCB

printing_ecb-modprn-r3-brd.pdf

Input/Output Ports

SIO/0 or DART

BA=AB0=0 CD=AB1=0

BA=AB0=0 CD=AB1=1

BA=AB0=1 CD=AB1=0

BA=AB0=1 CD=AB1=1

CTC

Channel Values

CS0=AB0 CS1=AB1

Jumpers and Connectors

Jumper S7 - RESET_SEL

Select reset input pin.


Jumper Position

Description

3-4*

N8VEM SBC. Reset is connected to ECB pin 31C.

1-2

Kontron SBC. Reset is connected to ECB pin 26C

* default

Jumper S1 + S2 - IO_SEL

Select board I/O address area.


Jumper Position

Description

S1


1-2

AB4

3-4

AB5

5-6

AB6

7-8

AB7

S2


1-2

AB3 = 1

3-4

AB3 = 0

Jumper S4 + S5 + S6 – INT_SEL (this is only an option)

Select INT-Source for CTC as interrupt controller


Jumper Position

Description

no jumper*

No external /INT-Source

S4


1-2

/IQ0 to CTC-TRG3-Group

3-4

/IQ0 to CTC-TRG2-Group

5-6

/IQ1 to CTC-TRG3-Group

7-8

/IQ1 to CTC-TRG2-Group

9-10

/IQ2 to CTC-TRG3-Group

11-12

/IQ2 to CTC-TRG2-Group

S5


1-2

/IRQ0 – John Coffman’s Multifunction board to CTC-TRG2-Group

3-4

/IRQ1 – John Coffman’s Multifunction board to CTC-TRG2-Group

5-6

/IRQ2 – John Coffman’s Multifunction board to CTC-TRG2-Group

7-8

/IRQ3 – John Coffman’s Multifunction board to CTC-TRG2-Group

9-10

/IRQ4 – John Coffman’s Multifunction board to CTC-TRG3-Group

11-12

/IRQ5 – John Coffman’s Multifunction board to CTC-TRG3-Group

13-14

/IRQ6 – John Coffman’s Multifunction board to CTC-TRG3-Group

15-16

/IRQ7 – John Coffman’s Multifunction board to CTC-TRG3-Group

S6


1-2

TRG2

3-4

/TRG2

5-6

TRG3

7-8

/TRG3

* default

Jumper S3 – CLK-frequency for CTC to generate clock rate for communication

Configure clock source and frequency for communication


Jumper Position

Description

1-2,5-6*

f/2: Clock of 1,2288 MHz to TRG0/TRG1 if the f of Q1 is 2,4576MHz

3-4, 7-8

f/4: Clock of 0,6144 MHz to TRG0/TRG1 if the f of Q1 is 2,4576MHz

* default


Bill of Materials (BOM)

BOM Notes

Disclaimer: I did my best to make sure that components listed in this BOM will be compatible with ECB-ModPrn board. Obviously I didn't order all of components listed here, and I was not able to actually verify that they will work. Please make sure to double check specifications on manufacturer's and seller's web site before ordering. Please let me know (or update the BOM) if you found any problems or incompatibilities.

Many components have multiple part numbers listed in BOM. There are some differences between various part numbers, such as:

If unsure what to order, read specifications on seller's and manufacturer's web sites. Also please read Replacement Notes below. Finally, consult people on N8VEM news group.

BOM

C1-10 100nF X7R

C11-C12 10uF

C13-C27 1uF

IC1 74LS07N

IC2 74LS08N

IC3 74LS27N

IC4 74LS541N

IC5 74LS85N

IC6 74LS245N

IC7 74LS139N

IC9 Z80 SIO/0 Z80 DART

IC10 74LS21N

IC11 Z80CTC

IC14 74LS74N

IC15 74LS04N

IC16-IC18 MAX232

J1, J2 M09D male connector SUBD-9

P1 C96ABC

Q1 DIL14 2,4576MHz

R1-R5, R10, R11 1k

RN-R6-R9 4*1k

S1, S3, S6 DIP04YL S6 is an option

S2, S7 DIP02YL

S4 DIP06YL S4 is an option

S5 DIP08YL S5 is an option