IP-CPRI Altera, IP-CPRI Datasheet - Page 114

• 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

6–18
Table 6–44. CPRI_IQ_RX_BUF_CONTROL—MAP Receiver FIFO Buffer Control—Offset: 0x150
Table 6–45. CPRI_IQ_TX_BUF_CONTROL—MAP Transmitter FIFO Buffer Control—Offset: 0x160
Table 6–46. CPRI_IQ_RX_BUF_STATUS—MAP Receiver FIFO Buffer Status—Offset: 0x180–0x184
Table 6–47. CPRI_IQ_TX_BUF_STATUS—MAP Transmitter FIFO Buffer Status—Offset: 0x1A0–0x1A4
CPRI MegaCore Function User Guide
RSRV
map_rx_enable
RSRV
map_tx_enable
buffer_rx_underflow
buffer_rx_overflow
Note to
(1) If this CPRI MegaCore function has more than 16 antenna-carrier interfaces (N_MAP > 16), the status for antenna-carrier interfaces 0 through
buffer_tx_underflow
buffer_tx_overflow
Note to
(1) If this CPRI MegaCore function has more than 16 antenna-carrier interfaces (N_MAP > 16), the status for antenna-carrier interfaces 0 through
15 is in the register at offset 0x180, and the status for antenna-carrier interfaces 16 and up is in the register at offset 0x184. The maximum
number of antenna-carrier interfaces in the CPRI MegaCore function is 24.
15 is in the register at offset 0x1A0, and the status for antenna-carrier interfaces 16 and up is in the register at offset 0x1A4. The maximum
number of antenna-carrier interfaces in the CPRI MegaCore function is 24.
Table
Table
Field
Field
Field
Field
6–46:
6–47:
[31:N_MAP]
[(N_MAP-1):0]]
[31:N_MAP]
[(N_MAP-1):0]]
[(N_MAP+15):16] RC
[(N_MAP-1):0]]
[(N_MAP+15):16] RC
[(N_MAP-1):0]]
Bits
Bits
Bits
Bits
UR0
UR0
Access
RW
Access
RW
RC
RC
Access
Access
Reserved.
Enables or disables the corresponding
antenna-carrier receiver interfaces. The
bits of this field propagate to the
corresponding cpri_map_rx_en output
signals.
Reserved.
Enables or disables the corresponding
antenna-carrier transmitter interfaces.
The bits of this field propagate to the
corresponding cpri_map_tx_en output
signals.
Indicates MAP Rx buffer underflow in the
corresponding antenna-carrier interfaces.
Indicates MAP Rx buffer overflow in the
corresponding antenna-carrier interfaces.
Indicates MAP Tx buffer underflow in the
corresponding antenna-carrier interfaces.
Indicates MAP Tx buffer overflow in the
corresponding antenna-carrier interfaces.
MAP Interface and AUX Interface Configuration Registers
Function
Function
Function
Function
December 2010 Altera Corporation
Chapter 6: Software Interface
(Note 1)
(Note 1)
0
(N_MAP)’h7F
(all 1s)
0
(N_MAP)’h7F
(all 1s)
Default
Default
Default
16'h0
16'h0
Default
16'h0
16'h0