TED 7360 (Text Editing Device) reference

TED register set:
|  | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
$FF00 (R/W) |  | Timer 1 High-Byte
$FF01 (R/W) |  | Timer 1 Low-Byte
$FF02 (R/W) |  | Timer 2 High-Byte
$FF03 (R/W) |  | Timer 2 Low-Byte
$FF04 (R/W) |  | Timer 3 High-Byte
$FF05 (R/W) |  | Timer 3 Low-Byte
$FF06 (R/W) | CR1 | TEST | ECM | BMM | DEN | RSEL | YSCROLL
$FF07 (R/W) | CR2 | REVERSE | PAL/NTSC | STOP | MCM | CSEL | XSCROLL
$FF08 (R/W) |  | Keyboard Input Latch
$FF09 (R/W) | IRQST | IRQ | ICNT3 | unused ¹ | ICNT2 | ICNT1 | ILP | IRST | unused ¹
$FF0A (R/W) | IRQEN | unused ¹ | ECNT3 | unused ¹ | ECNT2 | ECNT1 | ELP | ERST | RST8
$FF0B (R) | RASTER | Raster Counter bits 7-0
$FF0B (W) | RSTCMP | Raster Comparator bits 7-0
$FF0C (R/W) |  | unused ¹ | Cursor Position bits 9-8
$FF0D (R/W) |  | Cursor Position Low-Byte
$FF0E (R/W) |  | Channel 1 Frequency Low-Byte
$FF0F (R/W) |  | Channel 2 Frequency Low-Byte
$FF10 (R/W) |  | unused ¹ | Chan. 1 Freq. bits 9-8
$FF11 (R/W) |  | D/A mode | C2 noise | C2 square | C1 enable | Volume (0-8)
$FF12 (R/W) |  | unused ¹ | Bitmap Address (A15-A13) | CHARROM | Chan. 2 Freq. bits 9-8
$FF13 (R/W) |  | Charset Address (A15-A10) | 1 MHz | ROM
$FF14 (R/W) |  | Video RAM Address (A15-A11) | unused ¹
$FF15 (R/W) | B0C | unused ¹ | Luma | Chroma
$FF16 (R/W) | B1C | unused ¹ | Luma | Chroma
$FF17 (R/W) | B2C | unused ¹ | Luma | Chroma
$FF18 (R/W) | B3C | unused ¹ | Luma | Chroma
$FF19 (R/W) | EC | unused ¹ | Luma | Chroma
$FF1A (R/W) |  | unused ¹ | V. RAM Pos (A9-A8)
$FF1B (R/W) |  | Video RAM Position (A7-A0)
$FF1C (R/W) |  | unused ¹ | VSCAN8
$FF1D (R/W) |  | Vertical Scan Position Low-Byte
$FF1E (R/W) |  | Horizontal Scan Position
$FF1F (R/W) |  | unused ¹ | Flash Counter | Vertical Character Scan Position
$FF3E (W) | ROMEN | unused
$FF3F (W) | RAMEN | unused

TED video modes:
ECM | BMM | MCM | Mode
--- | --- | --- | ---
0 | 0 | 0 | Hires character mode (40x25)
0 | 0 | 1 | Multicolor character mode (40x25)
0 | 1 | 0 | Hires bitmap mode (320x200)
0 | 1 | 1 | Multicolor bitmap mode (160x200)
1 | 0 | 0 | Hires character mode with extended background colors (40x25)

¹ - Unused bits read back 1
© 2009-2011 Graham