IP-CPRI Altera, IP-CPRI Datasheet - Page 121

• 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

Chapter 6: Software Interface
HDLC Registers
Table 6–68. HDLC_CONFIG—HDLC Feature Configuration 1—Offset: 0x308 (Part 2 of 2)
Table 6–69. HDLC_CONFIG_2—HDLC Feature Configuration 2—Offset: 0x30C
Table 6–70. HDLC_RX_CONTROL—HDLC Rx Control—Offset: 0x310
Table 6–71. HDLC_RX_DATA—HDLC Rx Data—Offset: 0x314
Table 6–72. HDLC_RX_DATA_WAIT—HDLC Rx Data with Wait-State Insertion—Offset: 0x318
December 2010 Altera Corporation
rx_long_frame_en
RSRV
length_check
RSRV
little_endian
RSRV
RSRV
crc_enable
RSRV
rx_discard
rx_data
rx_data
Field
Field
Field
Field
Field
[31:1] UR0
[0]
[31:1] RO
[0]
[31:0] RO
[31:0] RO
Bits
Bits
Bits
Bits
RW
WO
Access
Access
Access
Access
[9]
[8:5]
[4]
[3:2]
[1]
[0]
Bits
Reserved.
Enables insertion of HDLC CRC at the end of the HDLC frame.
Reserved.
Indicates that the HDLC receiver module should discard the current
HDLC Rx frame.
HDLC Rx frame data. If the HDLC receiver module takes HDLC data
from this register, if data is not ready when the module expects it, the
HDLC receiver module aborts the packet.
HDLC Rx frame data. If the HDLC receiver module takes HDLC data
from this register, it inserts wait states on the HDLC channel until
data is ready, unless the CPU times out the operation.
Access
RW
UR0
RW
UR0
RW
UR0
Enable reception of Rx HDLC frames longer than 1536
bytes.
Reserved.
Indicates that a length check is performed on Rx packets,
and those with length less than 64 bytes are discarded.
Reserved.
Indicates that the HDLC channel receive and transmit data
is formatted in little endian byte order.
Reserved.
Function
Function
Function
Function
Function
CPRI MegaCore Function User Guide
31'h0
1'h0
31'h0
1'h0
1'h0
1'h0
Default
Default
Default
Default
1’h0
4’h0
1’h0
2’h0
1’h0
1'h0
Default
6–25