分类: LINUX
2012-07-23 10:51:02
端口号 | 权限 | 长度 | 作用 |
70h | 不可读可写 | 8bit | 用它来设置cmos中的数据地址 |
71h | 可读可写 | 8bit | 用它来设置70h端口地址中的值 |
地址 | 数据 | 备注 |
00H | Time - Seconds | 硬件时间的秒 |
01H | Alarm - Seconds | |
02H | Time - Minutes | 硬件时间的分 |
03H | Alarm - Minutes | |
04H | Time - Hours | 硬件时间的时 |
05H | Alarm - Hours | |
06H | Date - Day of the week | |
07H | Date - Day | |
08H | Date - Month | |
09H | Date - Year 29h | |
0AH | Status Register A | |
0BH | Status Register B | |
0CH | Status Register C | |
0DH | Status Register D | |
0EH | Diagnostic Status | |
0FH | Shutdown Status | |
10H | A: | |
11H | Reserved | |
12H | 0 | |
13H | Reserved | |
14H | Equipment Installed | |
15H | Base Memory (high byte) | |
16H | Base memory (low byte) | |
17H | Extended Memory (high byte) | |
18H | Extended Memory (low byte) | |
19H | 0 (C:) Hard Disk Type | |
1AH | 1 (D:) Hard Disk Type | |
1BH | Reserved | |
1CH | Supervisor Password | |
1DH | Supervisor Password | |
1EH ~ 2DH | Reserved | |
2EH | CMOS Checksum (high byte) | |
2FH | CMOS Checksum (low byte) | |
30H | Extended Memory (high byte) | |
31H | Extended Memory (low byte) | |
32H | Date - Century | |
33H | Power On Status | |
34H~3FH | Reserved | |
40H~5FH | Extended CMOS | |
60H | User Password | |
61H | User Password | |
62H~7FH | Extended CMOS | |