IP-CPRI Altera, IP-CPRI Datasheet - Page 112

• Manufacturer Part Number: IP-CPRI
• Description: IP CORE - Common Public Radio Interface (CPRI)
• Manufacturer: Altera

Specifications of IP-CPRI

• Software Application: IP CORE, Interface And Protocols, HIGH SPEED
• Supported Families: Arria II GX, Cyclone IV GX, HardCopy IV, Stratix IV
• Core Architecture: FPGA
• Core Sub-architecture: Arria, Cyclone, Stratix
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: na
• Lead Free Status / RoHS Status: na

6–16
Table 6–36. CPRI_MAP_OFFSET_TX—MAP Tx Frame Offset—Offset: 0x11C (Part 2 of 2)
Table 6–37. CPRI_START_OFFSET_RX—Rx Start Frame Offset—Offset: 0x120
Table 6–38. CPRI_START_OFFSET_TX—Tx Start Frame Offset—Offset: 0x124
Table 6–39. CPRI_MAP_RX_READY_THR—CPRI Mapping Rx Ready Threshold—Offset: 0x128
CPRI MegaCore Function User Guide
map_tx_offset_z
map_tx_offset_x
RSRV
start_rx_hf_resync
RSRV
start_rx_offset_seq
start_rx_offset_z
start_rx_offset_x
RSRV
start_tx_hf_resync
RSRV
start_tx_offset_seq
start_tx_offset_z
start_tx_offset_x
RSRV
map_rx_ready_thr
Field
Field
Field
Field
[15:8]
[7:0]
[31:4]
[3:0]
Bits
Bits
[31:25] UR0
[24]
[23:22] UR0
[21:16] RW
[15:8]
[7:0]
[31:25] UR0
[24]
[23:22] UR0
[21:16] RW
[15:8]
[7:0]
Bits
Bits
RW
RW
RW
Access
Access
UR0
RW
RW
RW
RW
RW
RW
Access
Access
Hyperframe number for start of read of CPRI MAP transmitter AxC
container block from each enabled mapN Tx buffer. The CPRI IP
core reads the data from the mapN Tx buffer and routes it to the
CPRI frame buffer to be prepared for transmission on the CPRI link.
Basic frame number for start of read of CPRI MAP transmitter AxC
container block from each enabled mapN Tx buffer. The CPRI IP
core reads the data from the mapN Tx buffer and routes it to the
CPRI frame buffer to be prepared for transmission on the CPRI link.
Reserved.
Threshold for assertion of the mapN_rx_valid signal, for all data
channels N. The mapN_rx_valid signal is asserted only when the
MAP Rx buffer for data channel N fills beyond this threshold value.
All the MAP Rx buffers have the same depth, 16.
Reserved.
Enables synchronization every hyperframe instead of every
radio frame. When asserted, the start_rx_offset_z field is
ignored.
Reserved.
Sequence number for start of cpri_rx_start
synchronization output.
Hyperframe number for start of cpri_rx_start
synchronization output.
Basic frame number for start of cpri_rx_start
synchronization output.
Reserved.
Enables synchronization every hyperframe instead of every
radio frame. When asserted, the start_tx_offset_z field is
ignored.
Reserved.
Sequence number for start of cpri_tx_start
synchronization output.
Hyperframe number for start of cpri_tx_start
synchronization output.
Basic frame number for start of cpri_tx_start
synchronization output.
Function
Function
MAP Interface and AUX Interface Configuration Registers
Function
Function
December 2010 Altera Corporation
Chapter 6: Software Interface
Default
28’h0
4’h8
Default
8’h0
8’h0
Default
7'h0
1’h0
2'h0
6’h0
8’h0
8’h0
Default
7'h0
1’h0
2'h0
6’h0
8’h0
8’h0