MPC8360E datasheet(28/108 Pages) FREESCALE

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MPC8360E/MPC8358E PowerQUICC II Pro Processor Revision 2.x TBGA Silicon Hardware Specifications, Rev. 4

Freescale Semiconductor

UCC Ethernet Controller: Three-Speed Ethernet, MII Management

7.2

DUART AC Electrical Specifications

Table 24 provides the AC timing parameters for the DUART interface of the device.

UCC Ethernet Controller: Three-Speed Ethernet,

MII Management

This section provides the AC and DC electrical characteristics for three-speed, 10/100/1000, and MII

management.

8.1

Three-Speed Ethernet Controller (10/100/1000 Mbps)—

GMII/MII/RMII/TBI/RGMII/RTBI Electrical Characteristics

The electrical characteristics specified here apply to all GMII (gigabit media independent interface), MII

(media independent interface), RMII (reduced media independent interface), TBI (ten-bit interface),

RGMII (reduced gigabit media independent interface), and RTBI (reduced ten-bit interface) signals except

MDIO (management data input/output) and MDC (management data clock). The MII, RMII, GMII, and

TBI interfaces are only defined for 3.3 V, while the RGMII and RTBI interfaces are only defined for 2.5 V.

The RGMII and RTBI interfaces follow the Hewlett-Packard reduced pin-count interface for Gigabit

Ethernet Physical Layer Device Specification Version 1.2a (9/22/2000). The electrical characteristics for

the MDIO and MDC are specified in Section 8.3, “Ethernet Management Interface Electrical

Characteristics.”

8.1.1

10/100/1000 Ethernet DC Electrical Characteristics

The electrical characteristics specified here apply to media independent interface (MII), reduced gigabit

media independent interface (RGMII), reduced ten-bit interface (RTBI), reduced media independent

interface (RMII) signals, management data input/output (MDIO) and management data clock (MDC).

The MII and RMII interfaces are defined for 3.3 V, while the RGMII and RTBI interfaces can be operated

at 2.5 V. The RGMII and RTBI interfaces follow the Reduced Gigabit Media-Independent Interface

(RGMII) Specification Version 1.3. The RMII interface follows the RMII Consortium RMII Specification

Version 1.2.

Table 24. DUART AC Timing Specifications

Parameter

Value

Unit

Notes

Minimum baud rate

256

baud

—

Maximum baud rate

>1,000,000

baud

Oversample rate

—

Notes:

1. Actual attainable baud rate will be limited by the latency of interrupt processing.

2. The middle of a start bit is detected as the eighth sampled 0 after the 1-to-0 transition of the start bit. Subsequent bit values

are sampled each sixteenth sample.

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