User Guide

426 Hardware Reference Manual
Intel
®
IXP2800 Network Processor
Performance Monitor Unit
14 deq_push_ctrl_wph P_CLK single separate
Active when dequeueing from the push control
FIFO; occurs on the last cycle of a burst or on the
only cycle of a single transfer.
15
d_push_ctrl_fsm/
single_xfer_wph
P_CLK single separate
Active if the data is about to be transferred from
d_push data FIFO to the dp_unit FIFO is length 0,
i.e., a single 8-byte transfer.
16
d_push_ctrl_fsm/
data_128_bit_alligned
P_CLK single separate
Active if the data is about to be transferred from
d_push data FIFO to the dp_unit FIFO is quad-
word (128-bit) aligned.
17 perf_data_fifo_full P_CLK single separate
Asserts when the data FIFO in the d_push_bus_if
block has > 4 entries (Data from the RDRAM is
enqueued into this FIFO; dequeued data is
written to the push bus arbiter FIFO in dp_unit
block.)
18 reserved
19 reserved
20
DPL_RMW_BANK3_READ_
DATA_AVAIL_RPH
P_CLK single separate
Indicates that the read data for a read-modify-
write operation is available in the d_pull_bus_if
block. This signal is deasserted when the data
and command
21
DPL_RMW_BANK2_READ_
DATA_AVAIL_RPH
P_CLK single separate
Indicates that the read data for a read-modify-
write operation is available in the d_pull_bus_if
block. This signal is deasserted when the data
and command
22
DPL_RMW_BANK1_READ_
DATA_AVAIL_RPH
P_CLK single separate
Indicates that the read data for a read-modify-
write operation is available in the d_pull_bus_if
block. This signal is deasserted when the data
and command
23
DPL_RMW_BANK0_READ_
DATA_AVAIL_RPH
P_CLK single separate
Indicates that the read data for a read-modify-
write operation is available in the d_pull_bus_if
block. This signal is deasserted when the data
and command
24 addr_128bit_alligned P_CLK single separate
Indicates that bit 3 of the DRAM command’s
address at the head of the pull control FIFO (i.e.,
about to be dequeued) is low. This command is
for the pull data which is about to be enqueued
into a pull data bank FIFO.
25 b3_empty_rph P_CLK single separate Indicates that the pull data’s bank FIFO is empty.
26 b2_empty_rph P_CLK single separate Indicates that the pull data's bank FIFO is empty.
27 b1_empty_rph P_CLK single separate Indicates that the pull data's bank FIFO is empty.
28 b0_empty_rph P_CLK single separate indicates that the pull data's bank FIFO is empty
29 b3_full_rph P_CLK single separate
Indicates that the pull data's bank FIFO has > 0xf
entries in it, i.e., is full
30 b2_full_rph P_CLK single separate
Indicates that the pull data's bank FIFO has > 0xf
entries in it, i.e., is full.
31 b1_full_rph P_CLK single separate
Indicates that the pull data's bank FIFO has > 0xf
entries in it, i.e., is full.
32 b0_full_rph P_CLK single separate
Indicates that the pull data's bank FIFO has > 0xf
entries in it, i.e., is full.
Table 184. IXP2800 Network Processor Dram CH2 PMU Event List (Sheet 2 of 5)