Difference between revisions of "Dream Turbo Card by pear"

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(Clock selection)
(Specification)
Line 14: Line 14:
 
* RGB LED to signal by colors the selected CPU clock:
 
* RGB LED to signal by colors the selected CPU clock:
 
** 2MHz <span style="color: #08f">'''blue'''</span>,
 
** 2MHz <span style="color: #08f">'''blue'''</span>,
** 4MHz <span style="color: #060">'''green'''</span>,
+
** 4MHz <span style="color: #080">'''green'''</span>,
 
** 6MHz <span style="color: #ff0">'''yellow'''</span>,
 
** 6MHz <span style="color: #ff0">'''yellow'''</span>,
 
** 8MHz <span style="color: #f60">'''orange'''</span>,
 
** 8MHz <span style="color: #f60">'''orange'''</span>,

Revision as of 19:03, 6 January 2018

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 System clock 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 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...