KSZ8851-16MQL Datasheet, PDF(21/89 Page) Micrel Semiconductor – Single-Port Ethernet MAC Controller with 8/16-Bit or 32-Bit Non-PCI Interface

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KSZ8851-16MQL Datasheet, PDF (21/89 Pages) Micrel Semiconductor – Single-Port Ethernet MAC Controller with 8/16-Bit or 32-Bit Non-PCI Interface

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Micrel, Inc.

KSZ8851-16/32 MQL/MQLI

Pin Number

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

Pin Name

D14

D13

D12

D11

D10

DGND

VDDIO

Type

I/O (pd)

Gnd

I/O (pd)

Pin Function

Data bus bit 14

Data bus bit 13

Data bus bit 12

Data bus bit 11

Data bus bit 10

Data bus bit 9

Data bus bit 8

Data bus bit 7

Data bus bit 6

Data bus bit 5

Data bus bit 4

Data bus bit 3

Digital IO ground

Digital core ground

3.3V, 2.5V or 1.8V digital VDDIO input power supply for IO with well decoupling capacitors.

Data bus bit 2

Data bus bit 1

Data bus bit 0

Legend:

P = Power supply Gnd = Ground

I/O = Bi-directional I = Input O = Output.

Ipd = Input with internal pull-down (58K +/-30%).

Ipu = Input with internal pull-up (58K +/-30%).

Opd = Output with internal pull-down (58K +/-30%).

Opu = Output with internal pull-up (58K +/-30%).

Ipu/O = Input with internal pull-up (58K +/-30%) during power-up/reset; output pin otherwise.

Ipd/O = Input with internal pull-down (58K +/-30%) during power-up/reset; output pin otherwise.

I/O (pd) = Input/Output with internal pull-down (58K Â±30%).

Strapping Options

Pin Number

Pin Name

EESK

EEDI

Type

Ipd/O

Ipd

Pin Function

Endian mode select:

Pull-up = Big Endian

Pull-down (default) = Little Endian

During power-up / reset, this pin value is latched into register CCR, bit 10.

When this pin is no connect or tied to GND, the bit 11 (Endian mode selection) in

RXFDPR register can be used to program either Little (bit11=0 default) Endian mode or

Big (bit11=1) Endian mode.

Bus mode select for KSZ8851M when EEEN pin is pull-down without EEPROM

Pull-up = 16-bit bus mode

Pull-down or No connect (default) = 8-bit bus mode

This pin is âdonât careâ (no connect) for 32-bit bus mode when EEEN is pull-down

(without EEPROM).

During power-up / reset, this pin value is latched into register CCR bit 6/7.

Note: Ipu/O = Input with internal pull-up (58K +/-30%) during power-up/reset; output pin otherwise.

Ipd/O = Input with internal pull-down (58K +/-30%) during power-up/reset; output pin otherwise.

Pin strap-ins are latched during power-up or reset.

August 2009

M9999-083109-2.0

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