S/UNI®-ATLAS-3200 Telecom Standard Product Data Sheet
Preliminary
Pin Name
ICIF_ADDR[5:0]
Type
I/O
Pin No Function
(A) RLU_ADDR[5:0]
Output
(A) PHY address. RLU_ADDR indicates the PHYID for which a
response is expected on RLU_CLAV, and (on the last cycle
during which RLU_RDENB is deasserted) indicates the PHYID
on which to transfer then next cell.
(B) TPU_ADDR[5:0]
Input
(B) PHY address. TPU_ADDR indicates the PHYID for which
TPU_CLAV is to respond, and (on the last cycle during which
TPU_WRENB is deasserted) indicates the PHYID which the
subsequent cell belongs to.
(C) not used
(D) TPP_ADDR[5:0]
Input
Input
(C) Unused
(D) PHY address (valid values 0 to 47) . The TPP_ADDR bus is
used with the TPP_PTPA signal to poll the transmit FIFOs packet
available status.
When TPP_ADDR is sampled on the rising edge of TPP_CLK by
the PHY, the polled packet available indication TPP_PTPA signal
is updated with the status of the port specified by the TPP_ADDR
address on the following rising edge of TPP_CLK.
ICIF_CTRL
Input
(A) RLU_CLAV
(A) Cell available. When sampled high, this pin indicates that the
PHY can transfer at least one cell on the polled PHY, in addition
to any cell currently being transferred. If RLU_CLAV is asserted
at least 8 cycles before the end of the cell, then an additional cell
may be transferred on the same PHY without loss of efficiency.
(B) TPU_WRENB
(C) RLP_VAL
(B) Write enable. Active low signal initiates a cell transfer. Used
for address selection in Multi-PHY mode when deasserted.
(C) Data valid. RLP_VAL indicates the validity of the receive data
signals. RLP_VAL is low between transfers, when RSX is
asserted, and when the PHY pauses a transfer due to an empty
receive FIFO.
When RLP_VAL is high, the RLP_DAT[31:0], RLP_MOD[1:0],
RLP_SOP, RLP_EOP and RLP_ERR signals are valid. When
RLP_VAL is low, the RLP_DAT[31:0], RLP_MOD[1:0],
RLP_SOP, RLP_EOP and RLP_ERR signals are invalid and
must be disregarded. When a transfer is paused by holding
RLP_ENB low, RVAL will hold its value unchanged, although no
new data will be present on RDAT[31:0] until the transfer
resumes.
The RLP_SX signal is valid when RLP_VAL is low.
(D) TPP_ENB
(D) Write enable. The TPP_ENB signal is used to control the flow
of data to the S/UNI-ATLAS-3200. When TPP_ENB is high, the
TPP_DAT, TPP_MOD, TPP_SOP, TPP_EOP and TPP_ERR
signals are invalid and are ignored. The TPP_SX signal is valid
when TPP_ENB is high.
When TPP_ENB is low, the TPP_DAT, TPP_MOD, TPP_SOP,
TPP_EOP and TPP_ERR signals are valid and are processed.
TPP_SX is ignored when TPP_ENB is low.
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1990553, Issue 4
50
PMC [ PMC-SIERRA, INC ]
