KS8993F-EVAL Micrel Inc, KS8993F-EVAL Datasheet - Page 45

• Manufacturer Part Number: KS8993F-EVAL
• Description: EVAL KIT EXPERIMENTAL KS8993F
• Manufacturer: Micrel Inc

Specifications of KS8993F-EVAL

• Lead Free Status / RoHS Status: Not applicable / Not applicable

The following four figures illustrate the SPI data cycles for “Write”, “Read”, “Multiple Write” and “Multiple Read”. The
read data is registered out of SPIQ on the falling edge of SPIC, and the data input on SPID is registered on the rising
edge of SPIC.
Micrel, Inc.
May 2006
Some of the configuration settings, such as “Aging enable”, “Auto Negotiation Enable”, “Force Speed” and
“Power down” can be programmed after the switch has been started.
SPIS_N
SPIS_N
SPIC
SPID
SPIQ
SPIQ
SPIC
SPID
X
X
0
0
0
READ COMMAND
0
0
WRITE COMMAND
0
0
0
0
0
0
Figure 8: SPI Write Data Cycle
Figure 9: SPI Read Data Cycle
0
1
1
1
0
A7 A6 A5 A4 A3 A2 A1 A0
A7 A6 A5 A4 A3 A2 A1 A0
READ ADDRESS
WRITE ADDRESS
45
D7
D7
D6
[e-mail]
D6
READ DATA
D5
D5
D4
WRITE DATA
D4
D3
D3
D2
D2
D1
D1
D0
or [phone]
D0
M9999-052206
KS8993F/FL