Altera CPRI v6.0 MegaCore Function - Manual (Page 107)

Bits Field Name Type Value on
Reset
Description
(
RX_
BUF_
DEPTH
-
1):0
rx_buf_
delay
RO 0 Current receive buffer fill level. Unit is 32-bit words. Maximum
value is 2 RX_BUF_DEPTH -1.
TX_EX_DELAY Register
Table 5-23: CPRI v6.0 IP Core TX_EX_DELAY Register at Offset 0x50
Bits Field Name Type Value on
Reset
Description
31:24
tx_msrm_
period
RW 8'b0 Integration period for Tx buffer extended delay measurement.
Program this field with the user-defined value N, where M/N =
ex_delay_clk
period /
cpri_clkout
period.
23
tx_ex_
delay_
valid
RC 1'b0 Indicates that the
tx_ex_delay
field has been updated.
22:16 Reserved UR0 7'b0
15:0
tx_ex_
delay
RO 16'b0 Tx buffer extended delay measurement result. Unit is
cpri_
clkout
clock periods.
Related Information
• Extended Delay Measurement on page 3-41
• Extended Delay Measurement Interface on page 3-43
RX_EX_DELAY Register
Table 5-24: CPRI v6.0 IP Core IRX_EX_DELAY Register at Offset 0x54
Bits Field Name Type Value on
Reset
Description
31:24
rx_msrm_
period
RW 8'b0 Integration period for Rx buffer extended delay measurement.
Program this field with the user-defined value N
R
, where M/N
R
=
ex_delay_clk
period /
cpri_clkout
period.
5-18 TX_EX_DELAY Register
UG-01156
2015.02.16
Altera Corporation CPRI v6.0 IP Core Registers
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