●If the number of character colors is 16
Bit 3 2 1 0
┌──┬──┬──┬──┐
│Compatible │ (4 bits)
│bits │
└──┴──┴──┴──┘
●If the number of character colors is 256
Bit 7 6 5 4 3 2 1 0
┌──┬──┬──┬──┬──┬──┬──┬──┐
│− │− │− │− │Compatible │ (4 bits)
│ │ │ │ │bits │
└──┴──┴──┴──┴──┴──┴──┴──┘
●If the number of character colors is 2048
Bit 15 8 7 3 2 1 0
┌──┬──┬──┬──┬──┬──┬──┬──┬──┬──┬──┬──┬──┬──┬──┬──┐
│− │− │− │− │− │− │− │− │− │− │− │− │Compatible │ (4 bits)
│ │ │ │ │ │ │ │ │ │ │ │ │bits │
└──┴──┴──┴──┴──┴──┴──┴──┴──┴──┴──┴──┴──┴──┴──┴──┘
15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 |
- | - | - | - | - | - | - | - |
|---|
07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
- | - | - | R0SFCS | N3SFCS | N2SFCS | N1SFCS | N0SFCS |
|---|
| N0SFCS | 180024H | bit 0 | For NBG0 (or for RBG1) |
| N1SFCS | 180024H | bit 1 | For NBG1 |
| N2SFCS | 180024H | bit 2 | For NBG2 |
| N3SFCS | 180024H | bit 3 | For NBG3 |
| R0SFCS | 180024H | bit 4 | For RBG0 |
| xxSFCS | process |
|---|---|
| 0 | Enable special function code A |
| 1 | Enable special function code B |
15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 |
SFCDB7 | SFCDB6 | SFCDB5 | SFCDB4 | SFCDB3 | SFCDB2 | SFCDB1 | SFCDB0 |
|---|
07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 |
SFCDA7 | SFCDA6 | SFCDA5 | SFCDA4 | SFCDA3 | SFCDA2 | SFCDA1 | SFCDA0 |
|---|
| SFCDA7~SFCDA0 | 180026H | Bits 7-0 | For special function code A |
| SFCDB7~SFCDB0 | 180026H | bits 15-8 | For special function code B |
| bit name | dot color code |
|---|---|
| SFCDx0 | When the lower 4 bits of the dot color code are 0H or 1H |
| SFCDx1 | When the lower 4 bits of the dot color code are 2H or 3H |
| SFCDx2 | When the lower 4 bits of the dot color code are 4H or 5H |
| SFCDx3 | When the lower 4 bits of the dot color code are 6H or 7H |
| SFCDx4 | When the lower 4 bits of the dot color code are 8H or 9H |
| SFCDx5 | When the lower 4 bits of the dot color code are AH or BH |
| SFCDx6 | When the lower 4 bits of the dot color code are CH or DH |
| SFCDx7 | When the lower 4 bits of the dot color code are EH or FH |
| Setting value | process |
|---|---|
| 0 | Don't use special features |
| 1 | Use special features |
★ HARDWARE Manual ★ VDP2 User's Manual ★ Chapter 10 Dot Color Data