| Frequency | JP9 | JP21 | JP22 |
|---|---|---|---|
| Single frequency (recommended for 40/50MHZ PAT48AN |
0++ | 0++ | 0++ |
| Dual frequency (recommended for 25/33 PAT48AN |
++0 | ++0 | ++0 |
Clock Selection: JP20
| CPU Speed | JP20 |
|---|---|
| 25MHz | +0++ |
| 33MHz | ++0+ |
| 40MHz | 0+++ |
| 50MHz | +0++ |
CPU Speed Indicator Jumper: JP24
| JP24 | Condition |
|---|---|
| ++0 | 25/33MHz |
| 0++ | 40/50MHz |
