System Status Register 3 - Performance Computer PT-VME161 User Manual

4
Section FUNCTIONAL SUMMARY

System Status Register 3

Bit
2-0
3
4
5
6
7
66 Extensible Single Board Computer/Controller User's Manual
Address 68000000h
Byte Read Only
7 6 5 4 3
Name Function
DRAMSZ Indicates the amount of DRAM installed
7-5 Reserved
4 64 Meg
3 32 Meg
2 16 Meg
1 8 Meg
0 4 Meg
PARI Parity Installed
1 Parity generation and checking logic installed
0 Parity logic not installed - no parity errors generated
ITIP0 Interval Timer 0 Interrupt Pending
1 Interrupt pending
0 No interrupt pending
ITIP1 Interval Timer 1 Interrupt Pending
1 Interrupt pending
0 No interrupt pending
ITIP2 Interval Timer 2 Interrupt Pending
1 Interrupt pending
0 No interrupt pending
Reserved, mask to zero when read
2 1 0
DRAMSZ
PARI
ITIP0
ITIP1
ITIP2
Reserved