Technical Information 1-19
6 and 7: RPG0 and 1 (R/W)
Bits 7, 6
0, 0
Lowest 64 KB of the 256 KB ROM accessible from F0000 to FFFFF
0, 1
Second 65 KB of the 256 KB ROM accessible from F0000 to FFFFF
1, 0
Third 64 KB of the 256 KB ROM accessible from F0000 to FFFFF
1, 1
Highest 64 KB of the 256 KB ROM accessible from F0000 to FFFFF
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NEC port 0C13h
0: CMOS Clear (Read only)
Connected to a switch (SW4-1)
0
Requests BIOS to clear CMOS
1
Normal read of CMOS
1: CPU Speed (Read only)
Connected to a switch (SW4-2)
0 equals 60 MHz host bus frequency (default for Image P90E)
1 equals 66 MHz host bus frequency (default for Image P100E)
2: Not Used (Read only)
Connected to a switch (SW4-3)
3 and 4: Not Used (Read only)
0
1
2
3
4
5
6
7
Cache
Module
Present
Bit
Cache
Module
Present
Bit
Cache
Module
Present
Bit
Not used
Not
Used
Not
Used
CPU
Speed
CMOS
Clear