8101 datasheet(65/172 Pages) LSI

65 / 172 page

Counters

2-47

2.19 Counters

The controller has a set of 53 management counters. Each counter

tabulates the number of times a speciﬁc event occurs. A complete list of

all counters along with their deﬁnitions is shown in Table 2.14. and

described in Chapter 4, Registers.These counters provide the necessary

statistics to completely support the following speciﬁcations:

• RMON Statistics Group (IETF RFC1757)

• SNMP Interfaces Group (IETF RFC1213 and 1573)

• Ethernet-Like MIB (IETF RFC1643)

• Ethernet MIB (IEEE 802.3z, clause 30)

Table 2.13

Reset Description

Name

Initiated By

Reset Action

Controller

Reset

RESETn pin

asserted LOW

Reset datapath

Flush transmit FIFO

RST bit = 1 in Register 7

(Conﬁguration i)

Flush receive FIFO

Reset bits to default values

Reset counters to 0

Transmit

Reset

TXRST bit = 1 in Register 7

(Conﬁguration 1)

Reset transmit data path

Flush transmit FIFO

Reset TX counters to 0

Receive

Reset

RXRST bit = 1 in Register 7

(Conﬁguration 1)

Reset receive data

separate path

Flush receive FIFO

Reset RX counters to 0

AutoNegotiation

Restart

ANRST bit = 1 in Register 7

(Conﬁguration 1)

Starts AutoNegotiation

sequence

Counter Reset

CTRRST bit = 1 in Register 7

(Conﬁguration 1)

Reset counters to 0

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