Marvell 88E3015 Manual page 57

Table 30 defines the register types used in the register map.
Table 30: Register Types
Typ e
LH
LL
Retain
RES
RO
ROC
R/W
RWC
SC
Update
WO
Copyright © 2008 Marvell
January 4, 2008, Advance
D escr ip tio n
Register field with latching high function. If status is high, then the register is set to a one
and remains set until a read operation is performed through the management interface or
a reset occurs.
Register field with latching low function. If status is low, then the register is cleared to zero
and remains zero until a read operation is performed through the management interface
or a reset occurs.
Value written to the register field does take effect without a software reset, and the register
maintains its value after a software reset.
Reserved for future use. All reserved bits are read as zero unless otherwise noted.
Read only.
Read only clear. After read, register field is cleared to zero.
Read and write with initial value indicated.
Read/Write clear on read. All bits are readable and writable. After reset or after the regis-
ter field is read, register field is cleared to zero.
Self-Clear. Writing a one to this register causes the desired function to be immediately
executed, then the register field is automatically cleared to zero when the function is
complete.
Value written to the register field does not take effect until soft reset is executed; however,
the written value can be read even before the software reset.
Write only. Reads to this type of register field return undefined data.
Document Classification: Proprietary Information
Register Description
Doc. No. MV-S103657-00, Rev. D
Page 57