参数资料
型号: IP-POSPHY4
厂商: Altera
文件页数: 53/144页
文件大小: 0K
描述: IP POS-PHY L4
标准包装: 1
系列: *
类型: MegaCore
功能: POS-PHY 4 级接口,链路层/物理层
许可证: 初始许可证
Chapter 4: Functional Description—Receiver
4–13
Error Flagging and Handling
Asserting reset deletes all data in the buffers, and resets all state bits.
In addition to the reset, asynchronous reset and locked signals are provided for the
internal PLL, if present. The PLL should be reset and stable along with all other clocks
before the reset is released.
Error Flagging and Handling
This section describes how the POS-PHY Level 4 receiver MegaCore function
responds to various errors.
Figure 4–6 shows an example user configuration for the POS-PHY Level 4 receiver
MegaCore function.
Figure 4–6. Example User Receiver Configuration
Internal SPI-4.2 Recei v er Core
Example User Side Connections
LVDS Locked
DPA Locked
Recei v er Trained
DIP-4 OOS
Atlantic Buffer Ready
Send Framing
RSFRM Control Bit from
A v alon Control Register
DPA Force Unlock
Atlantic Buffer O v er v iew
Atlantic Buffer Reset
Alignment
Buffer O v erflow
Alignment Buffer Flush
17
Delay
ctl_ry_rsfrm
ctl_rd_dpa_
force_
unlock
aN_arxreset_n
err_rd_a b uf_oflw
ctl_rd_a b uf_flush
Counter
stat_rd_dpa_l v ds_locked
stat_rd_dpa_locked
stat_rd_rdat_sync
stat_rd_rx_dip4_oos
User Force Frame
err_ry_fifo_oflwN
User Atlantic Reset
err_rd_a b uf_oflw
User Buffer Flush
Note to Figure 4–6 :
(1) The ctl_rd_dpa_force_unlock signal is not asserted until after start up.
(2) The delay is to ensure the ctl_rd_dpa_force_unlock signal is asserted for at least one clock cycle.
(3) The counter is intended to pulse the ctl_rd_dpa_force_unlock signal after the frame has been out of synchronization for some time.
May 2013
Altera Corporation
POS-PHY Level 4 MegaCore Function User Guide
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