KSZ8864RMNI MICREL [Micrel Semiconductor], KSZ8864RMNI Datasheet - Page 14

• Manufacturer Part Number: KSZ8864RMNI
• Description: Integrated 4-Port 10/100 Managed Switch with Two MACs MII or RMII Interfaces
• Manufacturer: MICREL [Micrel Semiconductor]

September 2011
Pin Description
Pin Number
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
1
2
3
4
5
6
7
8
9
SM3RXDV/SM3CRSDV
SM3TXC/SM3REFCLK
SM3TXEN
SM3RXD3
Pin Name
SM3TXD3
SM3TXD2
SM3TXD1
SM3TXD0
SM3RXC
VDDA12
INTR_N
VDDAT
VDDAT
VDDIO
VDDC
RXM1
TXM1
RXM2
TXM2
RXP1
RXP2
TXP1
TXP2
GND
ISET
Type
IPD/O
IPD/O
GND
OPU
IPD
IPD
IPD
IPD
IPD
I/O
I/O
O
O
O
O
P
P
P
P
P
I
I
I
I
(1)
Port
1
1
1
1
2
2
2
2
3
3
3
3
3
3
3
3
3
Pin Function
Physical receive signal + (differential).
Physical receive signal – (differential).
Physical transmit signal + (differential).
Physical transmit signal – (differential).
1.2V analog power.
Ground with all grounding of die bottom.
Set physical transmit output current. Pull-down with a
12.4kΩ1% resistor.
3.3V analog V
Physical receive signal + (differential).
Physical receive signal - (differential).
Physical transmit signal + (differential).
Physical transmit signal – (differential).
3.3V analog V
Interrupt. This pin is Open-Drain output pin.
1.2V digital core V
MAC3 Switch MII/RMII transmit enable.
MAC3 Switch MII transmit bit 3.
MAC3 Switch MII transmit bit 2.
MAC3 Switch MII/RMII transmit bit 1.
MAC3 Switch MII/RMII transmit bit 0.
MAC3 Switch MII transmit clock:
Input: SW3-MII MAC mode.
Output: SW3-MII PHY mode.
Input: SW3-RMII reference clock.
3.3V, 2.5V or 1.8V digital V
MAC3 Switch MII Receive clock:
Input: SW3-MII MAC mode.
Output: SW3-MII PHY mode.
Output: SW3-RMII reference clock.
Unused RMII clock can be pull-down or disable by register 87.
SM3RXDV: MAC3 Switch SW3-MII receive data valid.
SM3CRSDV: MAC3 Switch SW3-RMII Carrier Sense/Receive
Data Valid.
MAC3 Switch MII receive bit 3.
Strap option:
PD (default) = enable flow control;
PU = disable flow control.
14
(2)
DD
DD
.
.
DD
.
DD
for digital I/O circuitry.
M9999-092011-1.4