Digi NS9215 User Manual
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E T H E R N E T C O M M U N I C A T I O N M O D U L E
Ethernet General Status register
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283
Register bit
assignment
assignment
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E t h e r n e t G e n e r a l S t a t u s r e g i s t e r
Address: A060 0008
Bits
Access
Mnemonic
Reset
Description
D31:08
R/W
Not used
0
Always write as 0.
D07
R/W
TCLER
0
Clear transmit error
01 transition: Clear transmit error.
Clears out conditions in the transmit packet processor that
have caused the processor to stop and require assistance
from software before the processor can be restarted (for
example, an AHB bus error or the TXBUFNR bit set in the
Ethernet Interrupt Status register).
Toggle this bit from low to high to restart the transmit
packet processor.
Clears out conditions in the transmit packet processor that
have caused the processor to stop and require assistance
from software before the processor can be restarted (for
example, an AHB bus error or the TXBUFNR bit set in the
Ethernet Interrupt Status register).
Toggle this bit from low to high to restart the transmit
packet processor.
D06:04
R/W
Not used
0
Always write as 0.
D03
R/W
TKICK
0
Transmit DMA state machine enable
01 transition, used by software to start a DMA transfer
after a buffer descriptor has been updated.
01 transition, used by software to start a DMA transfer
after a buffer descriptor has been updated.
D02
R/W
AUTOZ
0
Enable statistics counter clear on read
0
0
No change in counter value after read
1
Counter cleared after read
When set, configures all counters in the Statistics module
to clear on read.
If AUTOZ is not set, the counters retain their value after a
read. The counters can be cleared by writing all zeros.
to clear on read.
If AUTOZ is not set, the counters retain their value after a
read. The counters can be cleared by writing all zeros.
D01
R/W
CLRCNT
1
Clear statistics counters
0
0
Do not clear all counters
1
Clear all counters
When set, synchronously clears all counters in the
Statistics module.
Statistics module.
D00
R/W
STEN
0
Enable statistics counters
0
0
Counters disabled
1
Counters enabled
When set, enables all counters in the Statistics module. If
this bit is cleared, the counters will not update.
this bit is cleared, the counters will not update.