S/UNI®-JET Data Sheet
Released
Register 40CH: S/UNI-JET Identification Register
Bit
Type
R
R
R
R
R
R
R
R
Function
Unused
Device_ID
Unused
Unused
Unused
Unused
Unused
Unused
Default
X
1
X
X
X
X
X
X
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
This register provides a device identification to distinguish the S/UNI-JET from a S/UNI-QJET in
applications where the S/UNI-QJET is used for prototype purposes.
DEVICE_ID
The DEVICE_ID bit allows software to identify the device as a S/UNI-JET. A logic one
identifies the device as a S/UNI-JET, whereas a logic zero identifies the device as a S/UNI-
QJET. To access this register, the IOTST bit in the S/UNI-JET Master Test Register must first
be set to logic one. The Device_ID bit can now be read. A logic zero must then be written
back to the IOTST bit to put the device back into normal mode of operation.
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1990267, Issue 3
248
PMC [ PMC-SIERRA, INC ]
