IP-POSPHY4 Altera, IP-POSPHY4 Datasheet - Page 91

• Manufacturer Part Number: IP-POSPHY4
• Description: IP CORE - POS-PHY Level 4 SPI 4.2 Interface
• Manufacturer: Altera
• Type: MegaCorer

Specifications of IP-POSPHY4

• Software Application: IP CORE, Interface And Protocols, COMMUNICATION
• Supported Families: Arria GX, Cyclone, HardCopy, Stratix
• Core Architecture: FPGA
• Core Sub-architecture: Arria, Cyclone, Stratix
• Rohs Compliant: NA
• Function: POS-PHY Level 4 Interface, Link-Layer/PHY Layer
• License: Initial License
• Lead Free Status / RoHS Status: na
• Lead Free Status / RoHS Status: na

Chapter 5: Functional Description—Transmitter
Signals
Table 5–6. Atlantic Buffer Control and Status
Table 5–7. SPI-4.2 Status Channel Control and Status (Part 1 of 3)
December 2010 Altera Corporation
ctl_ax_fth[?:0]
ctl_ax_errchk_chkpkt
err_td_fifo_parityN
stat_td_fifo_emptyN
err_aN_fifo_oflwN
err_aN_msopN
err_aN_meopN
stat_aN_mp_erradrN[7:0]
ctl_ts_status_mode
stat_ty_extstat_val
stat_ty_exstat_adr[7:0]
stat_ty_exstat[1:0]
Signal
Signal
.
Input -
Static
reset
Input -
Static
reset
Output
Output
Output
Output
Output
Output
Input -
Static reset
Output
Output
Output
Direction Clock Domain
Direction
aN_atxclk
tsclk
txsys_clk
Clock Domain
FIFO buffer threshold high determines when to
inform the user logic that space is available via the
aN_atxdav signals. Units are in bytes. Value applies
to all Atlantic buffers. Only change at reset.
Atlantic buffer error checking enable. Disable to
bypass missing SOP and missing EOP detection and
correction. Value applies to all Atlantic buffer levels.
Only change at reset.
Indicates that the FIFO buffer has detected a parity
error (one for each Atlantic buffer).
Indicates that the FIFO buffer has underflowed.
Asserted for one cycle if a buffer read fails because
the buffer is empty (one for each Atlantic interface).
Indicates that the FIFO buffer has overflowed, and
data has been lost (one for each Atlantic interface).
Indicates a missing start of packet error was detected
on the incoming Atlantic interface.
Indicates a missing end of packet error was detected
on the incoming Atlantic interface.
Address qualifier for err_aN_meopN and
err_aN_msopN flags. (Shared Buffer with
Embedded Addressing only.)
Controls the filtering of framed status. Set to one to
select optimistic processing of status, otherwise set
to zero for pessimistic processing of status.
Pessimistic behavior only passes status from the last
calendar multiplier in error free frames to the user
and scheduler. Optimistic behavior has the least
latency, passing all status to the user and scheduler
before determining if the status frame is error free.
Only change at reset.
Valid qualifier for the received status value, after
optimistic/pessimistic filtering.
Port number for the received status value.
Received status value.
POS-PHY Level 4 MegaCore Function User Guide
Description
Description
5–19