M69030 Asiliant Technologies, M69030 Datasheet - Page 98

• Manufacturer Part Number: M69030
• Manufacturer: Asiliant Technologies

Specifications of M69030

• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Operating Temperature (max): 70C
• Rad Hardened: No
• Lead Free Status / Rohs Status: Supplier Unconfirmed

8-10
1-0
`efmp

I/O Space Register Write Select and Read-Mode Control
69030 Databook
These bits default to the value of 0 after reset.
For the FCR, MSR, MSS, ST00 and ST01 registers:
For the CR sub-indexed register group:
1 0
0 0
0 1
1 0
1 1
1 0
0 0
0 1
1 0
1 1
Note: Write access to the index for the CR sub-indexed register group must be
enabled using these 2 bits of this register, since this index is controlled in the same
way as the actual CR sub-indexed registers, themselves.
Bit
Bit
All write access from the I/O space to these direct-access registers
of both pipelines is disabled.
Write access to these direct-access registers that either belong to
or are shared by pipeline A are made writable from the I/O space.
None of these direct-access registers that belong exclusively to
pipeline B are writable from the I/O space.
Write access to these direct-access registers that either belong to
or are shared by pipeline B are made writable from the I/O space.
None of these direct-access registers that belong exclusively to
pipeline A are writable from the I/O space.
Write access from the I/O space to these direct-access registers of
both pipelines is enabled.
All write access from the I/O space to the CR sub-indexed register
groups of both pipelines is disabled.
The CR sub-indexed register group that belongs to pipeline A is
made writable from the I/O space using pipeline A’s index for this
register group. Neither the CR sub-indexed register group that be-
longs to pipeline B, or its index, are readable from the I/O space.
The CR sub-indexed register group that belongs to pipeline B is
made writable from the I/O space using pipeline B’s index for this
register group. Neither the CR sub-indexed register group that be-
longs to pipeline A, or its index, are readable from the I/O space.
Write access from the I/O space to the CR sub-indexed register
groups of both pipelines is enabled.
General Control and Status Registers
FCR, MSR, MSS, ST00 and ST01
Effect on Write Accesses to CR
Sub-indexed Register Group
Effect on Write Accesses to
Revision 1.3 11/24/99