Tho top left is the board label and righ is the BDM connector.
| CR 4 Board |
Tho top left is the board label and righ is the BDM
connector.
To use BDM, hardware watch dog must be disabled. One
easy way is to lift the capacitor of
C105.
| Flash | Two 1MB chips | 28F080 |
| DIP BOOT | 512K | $000000-$07FFFF |
| Firmware | 2MB | $400000-$5FFFFF |
| NVRAM | 256KB | $200000-$23FFFF |
| RAM | 2MB | $D00000-$EFFFFF |
| Note | Lift one pin of C105 Pin 1 of BDM is on right side. |
