The ECB dual IDE -- with FDC board is being revised to Version 2.0.
The board contains two IDE interfaces (16-bit) which are interfaced to the 8-bit ECB bus. 16-bit IDE transfers are split into two 8-bit ECB bus transfers on the same device code. Both DMA and PIO transfers are possible. The board also contains a single-chip floppy disk controller, the WD37C65BJM, which has proved itself on the ECB SBC-188 and ECB N8 previously known as the Home Computer boards. The floppy controller is meant to operate DMA or PIO.
(Apologies for a few of the pix: they are from the 1.0 board, but are still applicable to the 2.0 board; e.g., 16+8 = 24 pin socket, rt angle IDE connector for CF cards.)
Jumper Settings
Open means that a shorting block is not in place (pins are not connected)
Closed means that a shorting block is in place and connecting the pins
Highlighted settings are reasonable defaults for SBC-Z80
| P3 |
closed = +5 to pin 20 of IDE 0 (use with caution, may damage IDE device that does not support +5 on pin 20)
open = no connection to pin 20 of IDE0 (closed to power Compact Flash card from IDE board)
|
| P4 |
closed = +5 to pin 20 of IDE 1 (use with caution, may damage IDE device that does not support +5 on pin 20)
open = no connection to pin 20 of IDE1
|
| P5 |
I/O port address range:
1-2 closed, 3-4 closed, 5-6 closed = $00-$1F
1-2 closed, 3-4 closed, 5-6 open = $20-$3F (suggested for Z80 systems)
1-2 closed, 3-4 open, 5-6 closed = $40-$5F
1-2 closed, 3-4 open, 5-6 open = $60-$7F
1-2 open, 3-4 closed, 5-6 closed = $80-$9F (suggested second choice)
1-2 open, 3-4 closed, 5-6 open= $A0-$BF
1-2 open, 3-4 open, 5-6 closed = $C0-$DF
1-2 open, 3-4 open, 5-6 open= $E0-$FF
|
| P6 |
closed = FDC DMA is connected to ECB bus (for use with MF/PIC card)
open = FDC DMA signal is not connected
|
| P7 |
removed: FDC INT signal is not connected
1-2: FDC INT signal is connected to ECB bus signal INT
3-4: FDC INT signal is connected to ECB bus signal NMI
5-6 FDC INT signal is connected to ECB bus signal IQ0 (future)
7-8, 9-10 FDC INT connected to IQ1 or IQ2, respectively
11-12, ... FDC INT is connected to IR0, IR1, &c. on the MF/PIC board.
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| K1 |
1-2: DREQ of IDE 0 is connected to ECB bus DREQ (SBC-188 or Z180 Mark IV)
2-3: DREQ of IDE 0 is connected to ground
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| K2 |
1-2: DREQ of IDE 1 is connected to ECB bus DREQ (SBC-188 or Z180 Mark IV)
2-3: DREQ of IDE 1 is connected to ground
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| K3 |
1-2: /RD is used to control direction of data (for SBC-Z80)
2-3: DT/R is used to control direction of data (for SBC-188 or mini-68K)
|
| K5 |
1-2: N8VEM legacy /RESET connection (older boards)
2-3: Kontron compatible /RESOUT connection (all boards in system must be Kontron compatible)
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N.B.: The suggested I/O address above is the same as the DiskIO board. It is not likely both will be in the same system at the same time.
The ECB mini-68K system is using $80-$9F for development; but the DiskIO board is present for checkout.
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