KSZ8863FLLI Micrel Inc, KSZ8863FLLI Datasheet - Page 39

• Manufacturer Part Number: KSZ8863FLLI
• Description: IC ETHERNET SWITCH 3PORT 48-LQFP
• Manufacturer: Micrel Inc

Specifications of KSZ8863FLLI

• Controller Type: Ethernet Switch Controller
• Interface: MII
• Voltage - Supply: 1.8V, 2.5V, 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / RoHS Status: Supplier Unconfirmed, Lead free / RoHS Compliant
• Other names: 576-3750

Micrel, Inc.
The KSZ8863MLL/FLL/RLL is capable of supporting a SPI bus.
The following is a sample procedure for programming the KSZ8863MLL/FLL/RLL using the SPI bus:
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.
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.
August 2010
1. At the board level, connect the KSZ8863MLL/FLL/RLL pins as follows:
2. Enable SPI slave mode by setting the KSZ8863MLL/FLL/RLL strap-in pins P2LED[1:0] to “10”.
3. Power up the board and assert reset to the KSZ8863MLL/FLL/RLL.
4. Configure the desired register settings in the KSZ8863MLL/FLL/RLL, using the SPI write or multiple write
5. Read back and verify the register settings in the KSZ8863MLL/FLL/RLL, using the SPI read or multiple read
command.
command.
KSZ8863MLL/FLL/RLL Pin #
39
36
37
38
SPIS_N
SPIC
SPID
SPIQ
X
0
0
READ COMMAND
0
0
KSZ8863MLL/FLL/RLL Signal Name
SPISN
SCL
(SPIC)
SDA
(SPID)
SPIQ
0
0
Figure 10. SPI Write Data Cycle
Figure 11. SPI Read Data Cycle
1
Table 13. SPI Connections
1
A7 A6 A5 A4 A3 A2 A1 A0
READ ADDRESS
39
External Processor Signal Description
SPI Slave Select
SPI Clock
SPI Data
(Master output; Slave input)
SPI Data
(Master input; Slave output)
D7
D6
READ DATA
D5
D4
D3
D2
D1
KSZ8863MLL/FLL/RLL
D0
M9999-081810-1.2