KSZ8895RLXC-TR Ver la hoja de datos (PDF) - Microchip Technology

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KSZ8895RLXC-TR

Integrated 5-Port 10/100 Managed Ethernet Switch with MII/RMII Interface

Microchip Technology 

KSZ8895MQX/RQX/FQX/MLX

TABLE 2-1: SIGNALS - KSZ8895MQX/RQX/FQX/MLX (CONTINUED)

Pin

Number

59

60

61

62

63

64

65

66

67

68

Pin

Name

VDDIO

PMRXC

PMRXDV/

PMCRSDV

PMRXD3

PMRXD2

PMRXD1

PMRXD0

PMRXER

PCRS

PCOL

Type,

Note

2-1

P

I/O

IPD/O

IPD/O

IPD/O

IPD/O

IPD/O

IPD/O

IPD/O

IPD/O

Port

—

5

5

5

5

5

5

5

5

5

Pin Function, Note 2-2

3.3V, 2.5V, or 1.8V digital VDD for digital I/O circuitry.

MQX/FQX/MLX: Output PHY [5] MII receive clock.

RQX: Output PHY [5] RMII reference clock, this clock is used when

opposite doesn’t provide RMII 50 MHz clock or the system doesn’t

provide an external 50 MHz clock for the P5-RMII interface.

MQX/FQX/MLX: PMRXDV is for PHY [5] MII receive data valid.

RQX: PMCRSDV is for PHY [5] RMII Carrier Sense/Receive Data

Valid Output.

MQX/FQX/MLX: PHY [5] MII receive bit 3.

RQX: no connection for RMII.

Strap option:

PD (default) = enable flow control.

PU = disable flow control.

MQX/FQX/MLX: PHY [5] MII receive bit 2.

RQX: no connection for RMII.

Strap option:

PD (default) = disable back pressure.

PU = enable back pressure.

MQX/FQX/MLX: PHY [5] MII receive bit 1.

RQX: PHY [5] RMII receive bit 1.

Strap option:

PD (default) = drop excessive collision packets.

PU = does not drop excessive collision packets.

MQX/FQX/MLX: PHY [5] MII receive bit 0.

RQX: PHY [5] RMII receive bit 0.

Strap option:

PD (default) = disable aggressive back-off algorithm in half-duplex

mode.

PU = enable for performance enhancement.

MQX/FQX/MLX:PHY [5] MII receive error

RQX: PHY [5] RMII receive error

Strap option:

PD (default) = packet size 1518/1522 bytes.

PU = 1536 bytes.

MQX/FQX/MLX: PHY [5] MII carrier sense.

RQX: no connection for RMII.

Strap option for port 4 only.

PD (default) = force half-duplex if auto-negotiation is disabled or

fails.

PU = force full-duplex if auto negotiation is disabled or fails. Refer to

Register 76.

MQX/FQX/MLX: PHY [5] MII collision detect.

RQX: no connection.

Strap option for port 4 only.

PD (default) = no force flow control, normal operation.

PU = force flow control. Refer to Register 66.

DS00002246A-page 10

 2016 Microchip Technology Inc.

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