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Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Bit name RX_CNT_TYPE_H [7:0]
R/W R/W
Value 0x03
after
reset
ADDR = 0x1CB: Receive Control/TYPE_H
Bits 7-0: RX_CNT_TYPE_H [7:0] specifies the expected Control when in LAPS mode or the expected
MSB of the Type field when in GFP mode, which consists of the Extension Header Identification,
Payload FCS Indicator and Payload Type Identifier. In LAPS mode, the LAPS RX Processor
compares the received Control to this value when RX_CNT_CHECK_INH is not set. In GFP
mode, the GFP RX Processor compares the received Type field to this value when
RX_TYPE_CHECK_INH is not set. The default value is assigned to 0x03 for LAPS since LAPS is
the default mode. For GFP mode, this register must be programmed to 0x10 for Null Headers with
FCS.
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Bit name RX_RA_DPSP [7:0]
R/W R/W
Value 0xDD
after
reset
ADDR = 0x1CC: Receive Rate Adaptation/DPSP
Bits 7-0: RX_RA_DPSP[7:0] specifies the expected Rate Adaptation byte when in LAPS mode or the
expected {DP, SP} byte when in GFP mode. In LAPS mode, if the rate adaptation sequence is
received {0x7D, RA} it is removed. In GFP mode, if the received byte matches RX_RA_DPSP and
RX_DP_CHECK_INH and RX_SP_CHECK_INH are not set, the received byte is removed. The
default value is assigned to 0xDD for LAPS since LAPS is the default mode. For GFP mode, this
register must be programmed.