Altera Stratix V Avalon-ST Manuale Utente Pagina 114

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Table 5-20: Hard IP Reconfiguration Signals
Signal Direction Description
hip_reconfig_clk
Input Reconfiguration clock. The frequency range for this clock is 50–
125 MHz.
hip_reconfig_rst_n
Input Active-low Avalon-MM reset. Resets all of the dynamic reconfi‐
guration registers to their default values as described in Hard IP
Reconfiguration Registers.
hip_reconfig_
address[9:0]
Input The 10-bit reconfiguration address.
hip_reconfig_read
Input Read signal. This interface is not pipelined. You must wait for the
return of the hip_reconfig_readdata[15:0] from the current
read before starting another read operation.
hip_reconfig_
readdata[15:0]
Output 16-bit read data. hip_reconfig_readdata[15:0] is valid on the
third cycle after the assertion of hip_reconfig_read.
hip_reconfig_write
Input Write signal.
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.
5-62
Hard IP Reconfiguration Interface
UG-01097_avst
2014.12.15
Altera Corporation
Interfaces and Signal Descriptions
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