Maxim Integrated DS33R11 - Manual (Page 150)

DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver
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Register Name:
RBCB1
Register Description: Receive Bit Count Byte 1 Register #1
Register Address: 99h
Bit
# 7 6 5 4 3 2 1 0
Name BC15 BC14 BC13 BC12 BC11 BC10 BC9 BC8
Default 0 0 0 0 0 0 0 0
Bits 0 - 7: Bit Count (BC[8:15]) Eight bits of a 32 bit value. Register description below.
Register Name:
RBCB2
Register Description: Receive Bit Count Byte 2 Register
Register Address: 9Ah
Bit
# 7 6 5 4 3 2 1 0
Name BC23 BC22 BC21 BC20 BC19 BC18 BC17 BC16
Default 0 0 0 0 0 0 0 0
Bits 0 - 7: Bit Count (BC[16:23]) Eight bits of a 32 bit value. Register description below.
Register Name:
RBCB3
Register Description: Receive Bit Count Byte 3 Register
Register Address: 9Bh
Bit
# 7 6 5 4 3 2 1 0
Name BC31 BC30 BC29 BC28 BC27 BC26 BC25 BC24
Default 0 0 0 0 0 0 0 0
Bits 0 - 7: Bit Count (BC[24:31]) Upper 8-bits of the register.
Bit Count (BC[0:31]) These thirty-two bits indicate the number of bits in the incoming data stream. This count
stops incrementing when it reaches a count of FFFF FFFFh. The associated bit counter will not incremented when
an OOS condition exists.