User's Manual

System Configuration Registers Maps and Registers
SPARC/CPU−56T 131
Bit AccessDefaultSwitch Setting/FunctionalityName
3 SW1−4 Reset/Abort key enabling
0: ON (Reset/Abort key disabled)
1: OFF (Reset/Abort key enabled)
1
2
r
4 SW2−1 User−defined Switch
0: ON
1: OFF
1
2
r
5 SW2−2 User−defined Switch
0: ON
1: OFF
1
2
r
6 SW2−3 User−defined switch
0: ON
1: OFF
1
2
r
7
SW2−4 User−defined switch
0: ON
1: OFF
1
2
r
Switch 3 and 4 Status Register
This register is used to read the switch settings of switch SW3 and SW4.
Address: 1FF.F160.01E1
16
Table 44: Switch 3 and 4 Status Register
Bit
Name Switch Setting/Functionality Default Access
0 SW3−1 Enable termination for SCSI 1
0: ON (Termination disabled)
1: OFF (Termination enabled)
1
2
r
1 SW3−2 Enable termination for SCSI 2
0: ON (Termination disabled)
1: OFF (Termination enabled)
1
2
r
2 SW3−3 Enable termination for SCSI 3 (avaliable on I/O
board)
0: ON (Termination disabled)
1: OFF (Termination enabled)
1
2
r
3
SW3−4 Reserved
0: ON
1: OFF
1
2
r