KSZ8893MQLI Datasheet, PDF (13/116 Pages) Micrel Semiconductor – Integrated 3-Port 10/100 Managed Switch with PHYs

Micrel, Inc.
Pin Number
26
Pin Name
RMII_EN
Type ⁽¹⁾
Opd
27
HWPOVR
Ipd
28
P2MDIXDIS
Ipd
29
P2MDIX
Ipd
30
P1ANEN
Ipu
31
P1SPD
Ipd
32
P1DPX
Ipd
33
P1FFC
Ipd
34
NC
35
NC
36
PWRDN
37
AGND
38
VDDA
39
AGND
40
MUX1
41
MUX2
Note:
1. P = Power supply.
Gnd = Ground.
I = Input.
Ipu = Input w/ internal pull-up.
Ipd = Input w/ internal pull-down.
Opd = Output w/ internal pull-down.
Ipd
Ipd
Ipu
Gnd
P
Gnd
I
I
KSZ8893MQL/MBL
Description
Strap pin for RMII Mode
0 = Disable
1 = Enable
After reset, this pin has no meaning and is a no connect.
Hardware pin overwrite
0 = Disable. All strap-in pins configurations are overwritten by
the EEPROM configuration data
1 = Enable. All strap-in pins configurations are overwritten by
the EEPROM configuration data, except for register 0x2C bits
[7:5], (port 2: auto-negotiation enable, force speed, force
duplex).
Port 2 Auto MDI/MDI-X
PD (default) = enable
PU = disable
Port 2 MDI/MDI-X setting when auto MDI/MDI-X is disabled.
PD (default) = MDI-X (transmit on TXP2 / TXM2 pins)
PU = MDI, (transmit on RXP2 / RXM2 pins)
1 = enable auto-negotiation on port 1
0 = disable auto-negotiation on port 1
1 = force port 1 to 100BT if P1ANEN = 0
0 = force port 1 to 10BT if P1ANEN = 0
1 = port 1 default to full duplex mode if P1ANEN = 1 and auto-
negotiation fails. Force port 1 in full-duplex mode if P1ANEN
= 0.
0 = port 1 default to half duplex mode if P1ANEN = 1 and
auto- negotiation fails. Force port 1 in half duplex mode if
P1ANEN = 0.
1 = always enable (force) port 1 flow control feature
0 = port 1 flow control feature enable is determined by auto
negotiation result.
No connect
No connect
Chip power down input (active low)
Analog ground
1.2V analog VDD
Analog ground
Factory test pin - float for normal operation
Factory test pin - float for normal operation
February 2010
13
M9999-021110-1.6