IDT CPS Registers
Revision 1.5
Integrated Device Technology, Inc.
CPS-16/12/8 User Manual
10 - 34
July 10, 2012
10.9.6 Rapid IO Port Write Information (RIO_PORT_WRITE_INFO)
This register will used to define the priority and the destination_ID that the device will use for Port-Write
Packets.
10.9.7 Rapid IO Port Write Source ID (RIO_PORT_WRITE_SRCID)
This register will used to define the Source_ID that the device will use for Port Write Packets. Note that the
transaction model defined in the RIO_PORT_WRITE_INFO register will apply to the Source_ID as well.
Table 10.49 RIO_PORT_WRITE_INFO 0xF20024
Bit
Field Name
Type
Reset
Value
Comment
12 - 0
Reserved
14 - 13
PRIO
R/W
0b00
SRIO Priority to be used for port-
writes
15
LARGE_TRANS
R/W
0b0
0 = use small device ID for port-
writes
1 = use large device ID for port-
writes
23 - 16
PORT_WRITE_TARGET_DEVICE_ID
R/W
0x00
Defines the Port-Write target
device ID
31 - 24
DEVID_MSB
R/W
0x00
MSB of the port-write target
device ID (Large transport defini-
tion only)
Table 10.50 RIO_PORT_WRITE_SRCID 0xF20028
Bit
Field Name
Type
Reset Value
Comment
15 - 0
Reserved
23 - 16
SRCID
R/W
0x00
Port-Write source device ID
31 - 24
SRCID_MSB
R/W
0x00
MSB of the port-write device ID
(Large only)