cs89712 Cirrus Logic, Inc., cs89712 Datasheet - Page 125

• Manufacturer Part Number: cs89712
• Description: High-performance, Low-power System-on-chip With 10base-t Ethernet Controller
• Manufacturer: Cirrus Logic, Inc.

3.18.10 Receiver Miss Counter Register (RxMISS, address offset 130h)
The RxMISS counter (Bits 6 through F) records the number of receive frames that are lost (missed) due to the lack
of available buffer space. If the MissOvfloiE bit (Register B, BufCFG, Bit D) is set, there is an interrupt when RxMISS
increments from 1FFh to 200h. This interrupt provides the software with an early warning that the RxMISS counter
should be read before it reaches 3FFh and starts over (by interrupting at 200h, the software has an additional 512
counts before RxMISS actually overflows). The RxMISS counter is cleared when read.
Register’s value is: 0000 0000 0001 0000
DS502PP2
5:0
7:6
F:8
Bit
MissCount
7:6
010000: These bits provide an internal address used by the CS89712 to identify this as register
10, the Receiver Miss Counter. When reading this register, these bits will be 010000, where the
LSB corresponds to Bit 0.
MissCount: The upper ten bits contain the number of missed frames.
Table 75. Receiver Miss Counter
010000
5:0
Description
MissCount
F:8
CS89712
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