Dream Turbo Card (design stage)
Brief information
Internal memory card and switched clock generators.
Specification
- 1 MB SRAM, optionally 2 MB, in banks of 64KB,
- 512 KB FlashROM, 8 banks of 64 KB with the option of individual switching off, EXOS in bank 7 (always on),
- RTC clock,
- NVRAM (battery backup),
- two-channel synchronized clock signal generator:
- system clock 4/8/12/16/20 MHz (2/4/6/8/10 MHz Z80 CPU),
- EXDOS clock 8/9.6/10/12/13.33/16 MHz
- LCD or OLED display (2x16 chars),
- RGB LED to signal by colors the selected CPU clock:
- 2MHz blue,
- 4MHz green,
- 6MHz yellow,
- 8MHz orange,
- 10MHz red,
- optional temperature sensor for NICK,
- configured by rotary encoder or by software.
Features
Status register
Config registers
Address
|
Bits
|
Content
|
NVRAM |
CPLD |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
0
|
0x7F |
3 |
Memory mode
|
EXDOS clock select |
System clock select
|
Memory bank mode, selection of clocks (below)
|
0x7E |
2 |
unused |
Flash.6
|
Flash.5 |
Flash.4 |
Flash.3
|
Flash.2 |
Flash.1 |
Flash.0
|
Disabling flash memory banks, bit N=1 Flash bank N disable
|
N/A |
1 |
LCD bias
|
1 |
1
|
LCD contrast
|
N/A |
0 |
LCD backlight |
LED blue
|
LED green |
LED red
|
LCD backlight and RGB LED control
|
Memory map
MT is MICROTEAM card.
Mode 0 (default)
|
|
x0-x3 |
x4-x7 |
x8-xB |
xC-xF
|
0x
|
Flash.7 |
CART
|
EPNET |
EPNET
|
1x
|
MT SRAM1 |
MT SRAM1
|
MT SRAM1 |
MT SRAM1
|
2x
|
MT Flash |
MT Flash
|
MT Flash |
MT Flash
|
3x
|
MT SRAM2 |
MT SRAM2
|
MT SRAM2 |
MT SRAM2
|
4x
|
MT DRAM1 |
MT DRAM1
|
MT DRAM1 |
MT DRAM1
|
5x
|
MT DRAM2 |
MT DRAM2
|
MT DRAM2 |
MT DRAM2
|
6x
|
Flash.0 |
Flash.1
|
Flash.2 |
Flash.3
|
7x
|
Flash.4 |
Flash.5
|
Flash.6 |
RAM1.F
|
8x
|
RAM2.0 |
RAM2.1
|
RAM2.2 |
RAM2.3
|
9x
|
RAM2.4 |
RAM2.5
|
RAM2.6 |
RAM2.7
|
Ax
|
RAM2.8 |
RAM2.9
|
RAM2.A |
RAM2.B
|
Bx
|
RAM2.C |
RAM2.D
|
RAM2.E |
RAM2.F
|
Cx
|
RAM1.0 |
RAM1.1
|
RAM1.2 |
RAM1.3
|
Dx
|
RAM1.4 |
RAM1.5
|
RAM1.6 |
RAM1.7
|
Ex
|
RAM1.8 |
RAM1.9
|
RAM1.A |
RAM1.B
|
Fx
|
RAM1.C |
RAM1.D
|
RAM1.E |
VRAM
|
Mode 1 (no RAM2)
|
|
x0-x3 |
x4-x7 |
x8-xB |
xC-xF
|
0x
|
Flash.7 |
CART
|
EPNET |
EPNET
|
1x
|
MT SRAM1 |
MT SRAM1
|
MT SRAM1 |
MT SRAM1
|
2x
|
MT Flash |
MT Flash
|
MT Flash |
MT Flash
|
3x
|
MT SRAM2 |
MT SRAM2
|
MT SRAM2 |
MT SRAM2
|
4x
|
MT DRAM1 |
MT DRAM1
|
MT DRAM1 |
MT DRAM1
|
5x
|
MT DRAM2 |
MT DRAM2
|
MT DRAM2 |
MT DRAM2
|
6x
|
Flash.0 |
Flash.1
|
Flash.2 |
Flash.3
|
7x
|
Flash.4 |
Flash.5
|
Flash.6 |
RAM1.F
|
8x
|
not used |
not used
|
not used |
not used
|
9x
|
MT SRAM1 |
MT SRAM1
|
MT SRAM1 |
MT SRAM1
|
Ax
|
MT Flash |
MT Flash
|
MT Flash |
MT Flash
|
Bx
|
MT SRAM2 |
MT SRAM2
|
MT SRAM2 |
MT SRAM2
|
Cx
|
RAM1.0 |
RAM1.1
|
RAM1.2 |
RAM1.3
|
Dx
|
RAM1.4 |
RAM1.5
|
RAM1.6 |
RAM1.7
|
Ex
|
RAM1.8 |
RAM1.9
|
RAM1.A |
RAM1.B
|
Fx
|
RAM1.C |
RAM1.D
|
RAM1.E |
VRAM
|
Mode 2 (no Flash)
|
|
x0-x3 |
x4-x7 |
x8-xB |
xC-xF
|
0x
|
Flash.7 |
CART
|
EPNET |
EPNET
|
1x
|
MT SRAM1 |
MT SRAM1
|
MT SRAM1 |
MT SRAM1
|
2x
|
MT Flash |
MT Flash
|
MT Flash |
MT Flash
|
3x
|
MT SRAM2 |
MT SRAM2
|
MT SRAM2 |
MT SRAM2
|
4x
|
MT DRAM1 |
MT DRAM1
|
MT DRAM1 |
MT DRAM1
|
5x
|
MT DRAM2 |
MT DRAM2
|
MT DRAM2 |
MT DRAM2
|
6x
|
RAM2.8 |
RAM2.9
|
RAM2.A |
RAM2.B
|
7x
|
RAM2.C |
RAM2.D
|
RAM2.E |
RAM1.F
|
8x
|
RAM2.0 |
RAM2.1
|
RAM2.2 |
RAM2.3
|
9x
|
MT SRAM1 |
MT SRAM1
|
MT SRAM1 |
MT SRAM1
|
Ax
|
MT Flash |
MT Flash
|
MT Flash |
MT Flash
|
Bx
|
MT SRAM2 |
MT SRAM2
|
MT SRAM2 |
MT SRAM2
|
Cx
|
RAM1.0 |
RAM1.1
|
RAM1.2 |
RAM1.3
|
Dx
|
RAM1.4 |
RAM1.5
|
RAM1.6 |
RAM1.7
|
Ex
|
RAM1.8 |
RAM1.9
|
RAM1.A |
RAM1.B
|
Fx
|
RAM1.C |
RAM1.D
|
RAM1.E |
VRAM
|
Mode 3 (no Flash & RAM2)
|
|
x0-x3 |
x4-x7 |
x8-xB |
xC-xF
|
0x
|
Flash.7 |
CART
|
EPNET |
EPNET
|
1x
|
MT SRAM1 |
MT SRAM1
|
MT SRAM1 |
MT SRAM1
|
2x
|
MT Flash |
MT Flash
|
MT Flash |
MT Flash
|
3x
|
MT SRAM2 |
MT SRAM2
|
MT SRAM2 |
MT SRAM2
|
4x
|
MT DRAM1 |
MT DRAM1
|
MT DRAM1 |
MT DRAM1
|
5x
|
MT DRAM2 |
MT DRAM2
|
MT DRAM2 |
MT DRAM2
|
6x
|
not used |
not used
|
not used |
not used
|
7x
|
not used |
not used
|
not used |
RAM1.F
|
8x
|
not used |
not used
|
not used |
not used
|
9x
|
MT SRAM1 |
MT SRAM1
|
MT SRAM1 |
MT SRAM1
|
Ax
|
MT Flash |
MT Flash
|
MT Flash |
MT Flash
|
Bx
|
MT SRAM2 |
MT SRAM2
|
MT SRAM2 |
MT SRAM2
|
Cx
|
RAM1.0 |
RAM1.1
|
RAM1.2 |
RAM1.3
|
Dx
|
RAM1.4 |
RAM1.5
|
RAM1.6 |
RAM1.7
|
Ex
|
RAM1.8 |
RAM1.9
|
RAM1.A |
RAM1.B
|
Fx
|
RAM1.C |
RAM1.D
|
RAM1.E |
VRAM
|
Clock selection
SELECT
|
System clock
|
CPU clock
|
EXDOS clock
|
0
|
8 MHz |
4 MHz |
8 MHz
|
1
|
12 MHz |
6 MHz |
9.6 MHz
|
2
|
16 MHz |
8 MHz |
10 MHz
|
3
|
20 MHz |
10 MHz |
12 MHz
|
4
|
4 MHz |
2 MHz |
13.33 MHz
|
5
|
8 MHz |
4 MHz |
16 MHz
|
6
|
8 MHz |
4 MHz |
8 MHz
|
7
|
8 MHz |
4 MHz |
8 MHz
|
How to install
Links
Thread on the Enterprise Forever forum 6Mhz and more...
Manual in other languages
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