Protection - Renesas IDT 89HPES48H12G2 User Manual

IDT Switch Configuration and Status Registers
Bit
Field Name
8:6
9 Reserved
13:10 SWPART
15:14 Reserved
20:16 DEVNUM
31:21 Reserved

Protection

GASAPROT - Global Address Space Access Protection (0x0700)
Bit
Field Name
15:0
31:16 Reserved
PES48H12G2 User Manual
Field Default
Type
Value
MODE RO HWINIT
RO 0x0
RO HWINIT
RO 0x0
RO HWINIT
RO 0x0
Field Default
Type
Value
PORT RW 0x0
SWSticky
RO 0x0
Description
Port Mode. This field contains the current operating mode of the
switch port. Due to the time it takes for a partition state change to
complete, this value may be different than that in the MODE field in
the SWPORTxCTL register.
If a port is disabled due to the associated partition being disabled,
then this field indicates that the port is disabled (i.e., the field does
not simply echo back the MODE field in the SWPORTxCTL regis-
ter).
0x0 - (disable) Disabled
0x1 - (downstream) Downstream switch port
0x2 - (upstream) Upstream switch port
0x5 - (unattached) Unattached
others - reserved
Reserved field.
Switch Partition. For operational port modes (i.e., downstream
switch port, upstream switch port, NT endpoint, upstream switch
port with NT endpoint), this field contains the current switch parti-
tion to which the port is attached. In non operational modes (i.e.,
disabled or unattached), the value of this field is undefined.
Due to the time it takes for a partition state change to complete,
this value may be different than that in the SWPART field in the
SWPORTxCTL register
Reserved field.
Device Number. When the port is configured as a downstream
switch port, this field contains the device number associated with
the port. In all other port modes, this value of this field is undefined.
Due to the time it takes for a partition state change to complete,
this value may be different than that in the DEVNUM field in the
SWPORTxCTL register.
Reserved field.
Description
Port. Each bit in this field corresponds to a switch port. When a bit
in this field is set, access to global address space using a GASA-
DDR and GASADATA register pair from the port is disabled and
fields in both registers become read-only with a value of zero.
Reserved field.
17 - 7 April 5, 2013