register
28 Wed May 28 17:37:25 1997
Draft 1/21/97
4-28
Registers
PRE.4 for Rev. D
Copyright 1997 by LSI Logic Corporation. All rights reserved.
is generated, an associated status bit is set to 1 to notify
the host processor that there is a PP status word in the
PSQ ready to be read out. After reset, this bit is 0.
EI_MMU
Enable Interrupt on Memory Management Unit
13
When set to 1, this bit allows an external interrupt to be
generated upon events occurring in the MMU block.
When reset to 0, the interrupt is masked. When an inter-
rupt on the MMU is generated, an associated status bit
is set to 1 to notify the host processor that there is an
MMU status word ready to be read out. After reset, the
bit is 0.
EI_PCR
Enable Interrupt on Program Clock Reference
12
When set to 1, this bit allows an external interrupt to be
generated upon arrival of a new PCR value in the trans-
port packet that matches the programmable PCR_PID
value. When reset to 0, the interrupt is masked. When the
interrupt on the PCR is generated, an associated status
bit is being set in the System Status Register (SSR),
described in Section
4.8.9. This indicates that new values
of PCR and LMC are ready to be read out. After reset,
the bit is 0.
EI_CHD
Enable Interrupt on Channel Decoder
11
When set to 1, this bit allows an external interrupt to be
generated upon some events occurring in the channel
decoder interface block. When reset to 0, the interrupt is
masked. When an interrupt on the channel decoder is
generated, an associated status bit in the SSR is set to
1 to notify the host processor that there is channel
decoder status word ready to be read out. After reset, the
bit is 0.
EI_CC
Enable Interrupt on Cache Error
10
When set to 1, this bit allows an external interrupt to be
generated when a cache error is detected. When reset to
0, the interrupt is masked. When the interrupt on CC is
generated, an associated status bit is set to 1 to notify
the host processor that there is a CC. After reset, this bit
is 0.
RES
Reserved
9
This bit is reserved.