Altera IP Compiler for PCI Express - Manual (Page 90)

5–4 Chapter 5: IP Core Interfaces
Avalon-ST Interface
IP Compiler for PCI Express User Guide August 2014 Altera Corporation
Figure 5–3. Signals in the Soft IP Implementation with Avalon-ST Interface
Notes to Figure 5–3 :
(1) Available in Stratix IV GX devices. For Stratix IV GX devices, <n> = 16 for ×1 and ×4 IP cores and <n> = 33 in the ×8 IP core.
(2) Available in Stratix IV GX devices. For Stratix IV GX reconfig_togxb, <n> = 3.
rx_st_ready0
rx_st_valid0
rx_st_data0[63:0]
rx_st_sop0
rx_st_eop0
rx_st_err0
rx_st_mask0
rx_st_bardec0[7:0]
rx_st_be0[7:0]
tx_st_ready0
tx_st_valid0
tx_st_data0[63:0]
tx_st_sop0
tx_st_eop0
tx_st_err0
tx_cred0[35..0]
tx_fifo_empty0
tx_fifo_rdptr0[3:0]
tx_fifo_wrptr0[3:0]
tx_fifo_full0
refclk
clk250_in - x8
clk250_out - x8
clk125_in - x1 and x4
clk125_out - x1 and x4
npor
srst - x1 and x4
crst - x1 and x4
rstn - x8
l2_exit
hotrst_exit
dlup_exit
dl_ltssm[4:0]
app_msi_req
app_msi_ack
app_msi_tc [2:0]
app_msi_num [4:0]
pex_msi_num [4:0]
app_int_sts
app_int_ack - x1 and x4
pme_to_cr
pme_to_sr
cfg_pmcsr[31:0]
cfg_tcvcmap [23:0]
cfg_busdev [12:0]
cfg_prmcsr [31:0]
cfg_devcsr [31:0]
cfg_linkcsr [31:0]
cfg_msicsr [15:0]
cpl_err[6:0]
cpl_pending
err_desc_func0 [127:0]- x1, x4
pipe_mode
pipe_rstn
pipe_txclk
rate_ext
xphy_pll_areset
xphy_pll_locked
txdetectrx_ext
txdata0_ext[15:0]
txdatak0_ext[1:0]
txelecidle0_ext
txcompl0_ext
rxpolarity0_ext
rxdata0_ext[15:0]
rxdatak0_ext[1:0]
rxvalid0_ext
rxelecidle0_ext
rxstatus0_ext[2:0]
phystatus_ext
powerdown_ext[1:0]
txdetectrx_ext
txdata0_ext[7:0]
txdatak0_ext
txelecidle0_ext
txcompl0_ext
rxpolarity0_ext
powerdown_ext[1:0]
rxdata0_ext[7:0]
rxdatak0_ext
rxvalid0_ext
phystatus_ext
rxelecidle0_ext
rxstatus0_ext[2:0]
test_in[31:0]
test_out[511:0]
tx_st_fifo_empty0
tx_st_fifo_full0
IP Compiler for PCI Express Soft IP Implementation
Interrupt
Clock
Reset
Test
Interface
Tx Port
(Path to
Virtual
Channel 0)
Power
Mnmt
Config
Completion
Interface
Rx Port
(Path to
Virtual
Channel 0)
reconfig_fromgxb[ <n> :0]
reconfig_togxb[ <n> :0]
reconfig_clk
cal_blk_clk
gxb_powerdown
Transceiver
Control
8-bit
PIPE
for x8
16-bit
PIPE
for x1
and x4
for
external
PHY
for
internal
PHY
Repeated for
Lanes 1-7 in
x8 MegaCore
Repeated for
Lanes 1-3 in
x4 MegaCore
tx_out0
tx_out1
tx_out2
tx_out3
tx_out4
tx_out5
tx_out6
tx_out7
rx_in0
rx_in1
rx_in2
rx_in3
rx_in4
rx_in5
rx_in6
rx_in7
Serial
IF to
PIPE
( user specified,
up to 512 bits)
Avalon-ST
Avalon-ST
Component
Specific
Component
Specific
×1 and ×4 only
(1)
(2)