KS8995MA-EVAL Micrel Inc, KS8995MA-EVAL Datasheet - Page 64
KS8995MA-EVAL
Manufacturer Part Number
KS8995MA-EVAL
Description
BOARD EVAL EXPERIMENT KS8995MA
Manufacturer
Micrel Inc
Datasheet
1.KS8995MA-EVAL.pdf
(79 pages)
Specifications of KS8995MA-EVAL
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
576-1018
- Current page: 64 of 79
- Download datasheet (619Kb)
Semptember 2008
Note:
To read out all the counters, the best performance over the SPI bus is (160+3) × 8 × 200 = 260ms, where there are 160 registers, 3 overhead, 8
clocks per access, at 5MHz. In the heaviest condition, the byte counter will overflow in 2 minutes. It is recommended that the software read all the
counters at least every 30 seconds. The per port MIB counters are designed as “read clear.” A per port MIB counter will be cleared after it is
accessed. All port dropped packet MIB counters are not cleared after they are accessed. The application needs to keep track of overflow and valid
conditions on these counters.
(2) MIB counter read (read port 2 rx 64 counter)
(3) MIB counter read (read port 1 tx drop packets)
Write to Register 110 with 0x1c (read MIB counter selected)
Write to Register 111 with 0x2e (trigger the read operation)
Then
Read Register 117 (counter value 31-24)
//If bit 31 = 1, there was a counter overflow
//If bit 30 = 0, restart (reread) from this register
Read Register 118 (counter value 23-16)
Read Register 119 (counter value 15-8)
Read Register 120 (counter value 7-0)
Write to Register 110 with 0x1d
Write to Register 111 with 0x00
Then
Read Register 119 (counter value 15-8)
Read Register 120 (counter value 7-0)
64
M9999-091508
Related parts for KS8995MA-EVAL
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
IC SWITCH 10/100 5PORT 128PQFP
Manufacturer:
Micrel Inc
Datasheet:
Part Number:
Description:
IC SWITCH 10/100 5PORT 128PQFP
Manufacturer:
Micrel Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Micrel Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Micrel Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Micrel Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Micrel Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Micrel Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Micrel Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Micrel Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Micrel Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Micrel Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Micrel Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Micrel Inc
Datasheet: