S/UNI®-8x155 ASSP Telecom Standard Product Data Sheet
Released
Register 0x02E, 0x12E, 0x22E, 0x32E, 0x42E, 0x52E, 0x62E, 0x72E:
SSTB Indirect Access Trigger Register
Bit
Type
R
R/W
Function
BUSY
RWB
Unused
Unused
Unused
Unused
Unused
Unused
Default
0
0
X
X
X
X
X
X
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
BUSY:
The BUSY bit reports whether a previously initiated indirect read or write to a message
buffer has been completed. BUSY is set high upon writing to the SSTB Indirect Address
register, and stays high until the initiated access has completed. At which point, BUSY is
set low. This register should be polled to determine when new data is available in the SSTB
Indirect Data register.
RWB:
The access control bit (RWB) selects between an indirect read or write access to the static
page of the section trace message buffer. When RWB is set high, a read access is initiated.
The data read can be found in the SSTB Indirect Data register. When RWB is set low, a
write access is initiated. The data in the SSTB Indirect Data register will be written to the
addressed location in the static page.
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC- 2010299, Issue 2
168
PMC [ PMC-SIERRA, INC ]
