DESCRIPTION
* NVRAM configuration parameters stored in RAM
* System and Ethernet identifiers(ID)
* Time-of-day clock(TOD)
* Battery backup
< * NVRAM * >
+---------------------+
| +-----------------+ |
| | RAM | |
| +-----------------+ |
+-------------------> Time of Day | |
| Configuration +-----------------+ |
| Information | | E'net Address | |
< Open Boot PROM > | +------------| +-+-------------+-+ |
+----------------+ | | | | | System ID | | |
| | | | | | +-------------+ | |
| | | | | | | | | |
| FORTH | | | | +-------|| ||-----+ |
| Language | <-----+ | | | | | | |
| commands |< | | | battery | |
| | <---------+ | | | |
| | | +-----------------+ |
| | +---------------------+
| |
| | +---------------------+
| <-----------------------> | |
| FORTH | Binary > | IU |
| Language | >| SPARC CPU Chip |
| Interpreter | Machine instructions > | |
| <-----------------------> | |
| | | |
+----------------+ +---------------------+
<* NVRAM *>
작성일자 : 1997.05.23
작 성 자 : 황 순 경