
DS34S132 DATA SHEET
19-4750; Rev 1; 07/11
124 of 194
10.3.8 Decap BERT Registers (DB.)
Table 10-24. Decap BERT Registers (DB.)
DB. Field
Name
Addr (A:)
Bit [x:y] Type
Description
BCR.
A:0400h
BERT Control Register. Default: 0x00.00.00.00
RSVD
[31:8]
Reserved.
PMUM
[7] rwc-_-_
Reserved.
LPMU
[6] rwc-_-_
Local Performance Monitoring Update. A 0 to 1 transition of this bit updates the
RXP Packet BERT Performance Monitoring registers (DB.RBECR.BEC and
DB.RBECR.BC) with the latest counts and then resets the counters.
RNPL
[5] rwc-_-_
Receive New Pattern Load. A 0 to 1 transition of this bit loads the test pattern
into the receive RXP Packet BERT Monitor (QRSS, PTS, PLF[4:0], PTF[4:0], and
BSP[31:0]). This forces the RXP Packet BERT Monitor to resynchronize to the
incoming data pattern. Note: QRSS, PTS, PLF[4:0}, PTF[4:0], and BSP[31:0]
must not change until 4 SYSCLK clock cycles after RNPL transitions from 0 to 1.
RPIC
[4] rwc-_-_
Receive Pattern Inversion Control. (RXP Packet BERT Monitor)
0 = test normal (unaltered) incoming data pattern
1 = invert and then test the incoming data pattern
MPR
[3] rwc-_-_
Manual Pattern Resynchronization. A 0 to 1 transition of this bit forces the RXP
Packet BERT Monitor to resynchronize to the incoming pattern.
APRD
[2] rwc-_-_
Automatic Pattern Resynchronization Disable. For APRD = 0, the RXP Packet
BERT Monitor is forced to resynchronize to the incoming pattern when 6 received
bits, within a 64-bit window, do not match the expected pattern. For APRD = 1,
after the RXP Packet BERT Monitor finds synchronization lock, it does not attempt
to resynchronize regardless of how many bit errors are detected.
TNPL
[1] rwc-_-_
Transmit New Pattern Load. A 0 to 1 transition of this bit loads the test pattern
into the transmit RXP TDM BERT Generator (QRSS, PTS, PLF[4:0], PTF[4:0],
and BSP[31:0]). Note: QRSS, PTS, PLF[4:0}, PTF[4:0], and BSP[31:0] must not
change until 4 SYSCLK clock cycles after TNPL transitions from 0 to 1.
TPIC
[0] rwc-_-_
Transmit Pattern Inversion Control. (RXP TDM BERT Generator)
0 = transmit normal (unaltered) outgoing data pattern
1 = transmit inverted outgoing data pattern
BPCR.
A:0404h
BERT Pattern Configuration Register. Default: 0x00.00.00.00
RSVD
[31:13]
Reserved.
PTF
[12:8] rwc-_-_
Test Pattern “y” Coefficient is used by the RXP Packet BERT Monitor and RXP
TDM BERT Generator to specify the “y” coefficient in the PRBS pattern: xn + xy +
1, where y = (PTF[4:0] + 1). PTF is ignored when a QRSS or Repetitive Pattern is
enabled.
RSVD
[7]
Reserved.
QRSS
[6] rwc-_-_
QRSS Sequence Select is used with PTS to select the transmit RXP TDM BERT
Generator and the receive RXP Packet BERT Monitor Test Pattern:
QRSS/PTS
0 / 0b = xz + xy + 1 PRBS Pattern (using PLF, PTF and BSP)
0 / 1b = Repetitive Pattern (using PLF and BSP)
1 / 0b = x20 + x17 + 1 QRSS Pattern with a forced “1” if the next 14 bits are “0”
1 / 1b = invalid setting
PTS
[5] rwc-_-_
Pattern Type Select. Used with QRSS to select the RXP BERT Test Pattern
PLF
[4:0] rwc-_-_
Test Pattern “z” Coefficient or Length is used by the RXP Packet BERT
Monitor and RXP TDM BERT Generator to specify the “z” coefficient in the PRBS
pattern: xz + xy + 1, where z = (PLF[4:0] + 1); or to specify the length for a
Repetitive Pattern. PLF is ignored when the QRSS Pattern is enabled.