|
|
Description |
Pin/Setting |
Description |
|
| J8 (JPWDCLR) | Closed | Clear Password | |
| *Open | Normal Operation | ||
| J9 (Jcol) | *Closed | Color | |
| Open | Monochrome | ||
| J12 (Jirq9) | *Closed | Enable | |
| IRQ 9 Enable | Open | Disable | |
| J13 (Jio) | 1-2 | Disabled | |
| I/O Controller | *2-3 | Enabled | |
| Disable | |||
| J14 (Jbte) | 1-2 | Boot Block | |
| Boot Select | *2-3 | Normal | |
| J15 (Jvgae) | 1-2 | Disabled | |
| On-board VGA | *2-3 | Enabled | |
| J16 (Jpare) | *1-2 | Enabled | |
| Parity Chcking | 2-3 | Disabled | |
| J23 (Jca2/3) | Any | No Cache | NoteJ23 & J25 are ignored if no ext. cache is installed |
| J25 (Jca17/2) | 1-2 | 128KB | |
| Both jumpers | 2-3 | 256KB | |
| must be set | 1-2 | 512KB | |
| the same. | |||
| J24 (Jcsize) | Any | No Cache | |
| No Jumper | 128KB | ||
| 1-2 | 256KB | ||
| 1-2,3-4 | 512KB | ||
| J27 (Jdack) | *1-2 | Channel 1 | |
| J28 (Jdrq) | 2-3 | Channel 3 | |
| ECP DMA | |||
| Channel Select | |||
| J30 (Jeride) | *1-2 | Enabled | |
| 2-3 | Disabled | ||
| J31 (Jbte) | *Closed | Enabled | |
| On-board battery enable pins 3-4 only | Open | Disabled | |
| J32 (Jsel) | 1-2 | 25MHz | NoteDepends on CPU shipped with the system |
| *2-3 | 33MHz | ||
| J33 (Jsx) | *5-6 | SX CPU | |
| 1-2,3-4 | All other CPUs | ||
| J34 (Jret) | 1-2 | Reserved | |
| *2-3 | All CPU | ||
| J35 (Jldev) | *Closed | Enabled | |
| Open | Disabled | ||
| J36 (J(3.3v)) | 1-2,3-4 | 3.3V CPU | |
| *3-5,4-6 | 5V CPU | ||
| J37 (Jmul) | *No Jumper | X3 Internal Clock | |
| P24C Clock | 3-4 | X2 Internal Clock | |
| Mult. Control | 1-2 | Other Multiplier | |
| J40 (Jspk) On-board speaker enable pins 3-4 only | *Closed | Enabled | |
| Open | Disabled |