USPIIi-1v Hardware Manual
5-6
Themis Computer
Refer to “Auto Slot ID: VME64 Specified”, on page 2-24, and “Auto-ID: A Proprietary Tundra Method”, on
page 2-25 of the Universe IIB Manual for more information.
5.3.4.2
Registered Access at the power up
Register access at the power up is used in a system where either the Universe IIB is independent of the local
CPU or there a CPU is not present. Since the Universe IIB and the UltraSPARC-II
i
are present on the USPIIi-
1v, registered access at power up is not supported.
5.3.5
Universe IIB’s hardware Power -Up Options
The Universe IIB power up options are determined right after the PWRRST# based on the level of VMEbus
Address VA[31..1] and VMEbus Data VD[31..27]. Table 5-3, "Address Translation for PCI Bus to VMEbus
Transfers," on page 5-10 for the Universe IIB’s power up options on the USPIIi-1v.
The Universe IIB is automatically configured at power up to operate in the default configuration listed in
Table 5-3, "Universe IIB Power Up Options ," on page 5-6. It should be noted that all power up options are
latched only at the positive edge of PWRRST#; they are loaded when SYSRST#, PWRRST#, and RST# are
negated.
Table 5-3.
Universe IIB Power Up Options
Option
Register
Field
Default
Pins
VMEbus Register
Access Slave
Image
VRAI_CTL
EN
Disabled
VA[31]
VAS
A16
VA[30..29]
VRAI_BS
BS
0x00
VA[28..21]
VMEbus CR/CSR
Slave Image
VCSR_CTL
LAS[0]
a
Memory
VA[20]
VCSR_TO
TO
0x00
VA[19..15]
Auto-ID
MISC_STAT
DY4AUTO
Disabled
VD[30]
MISC_CTL
V64AUTO
Disabled
VD[29]
VINT_EN
SW_INT
0
VINT_STAT
SW_INT
0
VINT_MAP1
SW_INT
000
BI-Mod)
MISC_CTL
BI
Disabled
VD[28]
AUTO_SYSCON
Detect
MISC_CTL
SYSCON
Enabled
VBG3IN#
SYSFAIL# Asser-
tion
VCSR_SET
SYSFAIL
Asserted
VD[27]
VCSR_CLR
SYSFAIL
--
--
PCI Target IMAGE
LSI0_CTL
EN
Disabled
VA[13]
LAS[0]
Memory
VA[12]
VAS
A16
VA[11..10]
LSI0_BS
BS
0x0
VA[9..6]
LSI0_BD
BD
0x0
VA[5..2]
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