Maxim Integrated DS33R11 - Manual (Page 200)

DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver
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Register Name:
SU.TxBdFrmCtr
Register Description: MAC All Frames Aborted Counter
Register Address: 0338h (indirect)
0338h:
Bit
# 31 30 29 28 27 26 25 24
Name TXFRMBD31 TXFRMBD30 TXFRMBD29 TXFRMBD28 TXFRMBD27 TXFRMBD26 TXFRMBD25 TXFRMBD24
Default 0 0 0 0 0 0 0 0
0339h:
Bit
# 23 22 21 20 19 18 17 16
Name TXFRMBD23 TXFRMBD22 TXFRMBD21 TXFRMBD20 TXFRMBD19 TXFRMBD18 TXFRMBD17 TXFRMBD16
Default 0 0 0 0 0 0 0 0
033Ah:
Bit
# 15 14 13 12 11 10 09 08
Name TXFRMBD15 TXFRMBD14 TXFRMBD13 TXFRMBD12 TXFRMBD11 TXFRMBD10 TXFRMBD9 TXFRMBD8
Default 0 0 0 0 0 0 0 0
033Bh:
Bit
# 07 06 05 04 03 02 01 00
Name TXFRMBD7 TXFRMBD6 TXFRMBD5 TXFRMBD4 TXFRMBD3 TXFRMBD2 TXFRMBD1 TXFRMBD0
Default 0 0 0 0 0 0 0 0
Bits 0 to 31: All Frames Aborted Counter (TXFRMBD[0:31]) 32 bit value indicating the number of frames
aborted due to any reason. Each time a frame is aborted, this counter is incremented by 1. This counter resets only
upon device reset, does not saturate, and rolls-over to zero upon reaching the maximum value. The user should
ensure that the measurement period is less than the minimum length of time required for the counter to increment
2^32-1 times at the maximum frame rate. The user should store the value from the beginning of the measurement
period for later calculations, and take into account the possibility of a roll-over to occurring.