Texas Instruments VLYNQ Port 사용자 설명서
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VLYNQ Port Registers
Table 9. Status Register (STAT) Field Descriptions (continued)
Bit
Field
Value
Description
8
RERROR
Remote Error. Write a 1 to this bit to clear it.
0
No error
This bit indicates that a downstream VLYNQ module has detected a packet error. This bit is
1
set when an error indication, /E/, is received from the serial interface. See
If this bit is set, and the INTENABLE (bit 13 in VLYNQ control register) is also set, it asserts
the VLYNQ interrupt (VLQINT).
the VLYNQ interrupt (VLQINT).
7
LERROR
Local error. Write a 1 to this bit to clear it.
0
No error.
This bit indicates that an inbound packet contains an error that is detected by the local
1
VLYNQ module.
If this bit is set, and the INTENABLE (bit 13 in VLYNQ control register) is also set, it asserts
the VLYNQ interrupt (VLQINT).
the VLYNQ interrupt (VLQINT).
6
NFEMPTY3
FIFO 3 is not empty.
0
Indicates that the slave command FIFO is empty.
1
Indicates that the slave command FIFO is not empty.
5
NFEMPTY2
FIFO 2 is not empty.
0
Indicates that the slave data FIFO is empty.
1
Indicates that the slave data FIFO is not empty.
4
NFEMPTY1
FIFO 1 is not empty.
0
Indicates that the master command FIFO is empty.
1
Indicates that the master command FIFO is not empty.
3
NFEMPTY0
FIFO 0 is not empty.
0
Indicates that the master data FIFO is empty.
1
Indicates that the master data FIFO is not empty.
2
SPEND
Pending slave request.
0
No pending slave requests.
Indicates detection of a transfer request initiated by the VLYNQ module to the off-chip
1
peripheral (TX slave configuration bus interface).
1
MPEND
Pending master requests.
0
No pending master requests.
Indicates detection of a transfer request initiated by an off-chip peripheral to the VLYNQ
1
module (RX master configuration bus interface).
0
LINK
Link
0
Indicates that the serial interface initialization sequence has not yet completed or the link
has timed out.
has timed out.
1
Indicates that the serial interface initialization sequence has completed successfully.
30
VLYNQ Port
SPRUE36A – September 2007