Altera Arria 10 Avalon-MM DMA User Manual
Page 62
Signal
Direction
Description
hip_reconfig_
writedata[15:0]
Input
16-bit write model.
hip_reconfig_byte_
en[1:0]
Input
Byte enables, currently unused.
ser_shift_load
Input
You must toggle this signal once after changing to user mode
before the first access to read-only registers. This signal should
remain asserted for a minimum of 324 ns after switching to user
mode.
interface_sel
Input
A selector which must be asserted when performing dynamic
reconfiguration. Drive this signal low 4 clock cycles after the
release of
ser_shif
t_load
.
Figure 5-8: Hard IP Reconfiguration Bus Timing of Read-Only Registers
avmm_clk
hip_reconfig_rst_n
user_mode
ser_shift_load
interface_sel
avmm_wr
avmm_wrdata[15:0]
avmm_rd
avmm_rdata[15:0]
D0
D0
D1
D1
D2 D3
324 ns
4 clks
4 clks
4 clks
For a detailed description of the Avalon-MM protocol, refer to the Avalon Memory Mapped Interfaces
chapter in the Avalon Interface Specifications.
Related Information
UG-01145_avmm_dma
2015.05.14
Hard IP Reconfiguration Interface
5-21
IP Core Interfaces
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