S/UNI®-ATLAS-3200 Telecom Standard Product Data Sheet
Preliminary
Pin Name
ICIF_MOD[1:0]
Type
Input
Pin No Function
(A) not used
(B) not used
(C) RLP_MOD[1:0]
(C) Number of bytes in packet modulo 4
RLP_MOD[1:0] indicates the number of valid bytes of data in
RLP_DAT[31:0]. The RLP_MOD bus should always be all zero,
except during the last double-word transfer of a packet on
RLP_DAT[31:0]. When RLP_EOP is asserted, the number of
valid packet data bytes on RLP_DAT[31:0] is specified by
RLP_MOD[1:0]
RLP_MOD[1:0] = “00”
RLP_MOD[1:0] = “01”
RLP_MOD[1:0] = “10”
RLP_MOD[1:0] = “11”
RLP_DAT[31:0] valid
RLP_DAT[31:8] valid
RLP_DAT[31:16] valid
RLP_DAT[31:24] valid
RLP_MOD[1:0] is considered valid only when RLP_VAL is
asserted.
(D) TPP_MOD[1:0]
(D) Number of bytes in packet modulo 4
TPP_MOD[1:0] indicates the number of valid bytes of data in
TPP_DAT[31:0]. The TPP_MOD bus should always be all zero,
except during the last double-word transfer of a packet on
TPP_DAT[31:0]. When TPP_EOP and TPP_ENB are asserted,
the number of valid packet data bytes on TPP_DAT[31:0] is
specified by TPP_MOD[1:0].
TPP_MOD[1:0] = “00”
TPP_MOD[1:0] = “01”
TPP_MOD[1:0] = “10”
TPP_MOD[1:0] = “11”
TPP_DAT[31:0] valid
TPP_DAT[31:8] valid
TPP_DAT[31:16] valid
TPP_DAT[31:24] valid
ICIF_ERR
Input
(A) not used
(B) not used
(C) RLP_ERR
(C) Error: discard packet. RLP_ERR is used to indicate that the
current packet is aborted and should be discarded. RLP_ERR
shall only be asserted when RLP_EOP is asserted.
Conditions that can cause RLP_ERR to be set may be, but are
not limited to, FIFO overflow, abort sequence detection and FCS
error.
RLP_ERR is not expected to be asserted for ATM cells, and has
no effect on their processing.
RLP_ERR is considered valid only when RLP_VAL is asserted.
(D)TPP_ERR
(D) Packet in Error. If TPP_ERR is asserted when TPP_EOP and
TPP_ENB are also asserted, then the packet is flagged in error.
TPP_ERR is not expected to be asserted for ATM cells, and has
no effect on their processing.
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1990553, Issue 4
49
PMC [ PMC-SIERRA, INC ]
