MPC8349VVAGF View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

MFG CO.

MPC8349VVAGF

PowerQUICC™ II Pro Integrated Host Processor Hardware Specifications

Freescale Semiconductor 

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Figure 12 shows the TBI transmit AC timing diagram.

tTTX

tTTXR

GTX_CLK

TXD[7:0]

TX_EN

TX_ER

tTTXH

tTTXF

tTTKHDX

Figure 12. TBI Transmit AC Timing Diagram

8.2.3.2 TBI Receive AC Timing Specifications

Table 26 provides the TBI receive AC timing specifications.

Table 26. TBI Receive AC Timing Specifications

At recommended operating conditions with LVDD/OVDD of 3.3 V ± 10%.

Parameter/Condition

Symbol1

Min

Typ

Max

Unit

PMA_RX_CLK clock period

tTRX

16.0

ns

PMA_RX_CLK skew

tSKTRX

7.5

—

8.5

ns

RX_CLK duty cycle

tTRXH/tTRX

40

—

60

%

RXD[7:0], RX_DV, RX_ER (RCG[9:0]) setup time to rising

PMA_RX_CLK

tTRDVKH2

2.5

—

—

ns

RXD[7:0], RX_DV, RX_ER (RCG[9:0]) hold time to rising

tTRDXKH2

1.5

—

PMA_RX_CLK

—

ns

RX_CLK clock rise time VIL(min) to VIH(max)

tTRXR

0.7

—

2.4

ns

RX_CLK clock fall time VIH(max) to VIL(min)

tTRXF

0.7

—

2.4

ns

Notes:

1. The symbols for timing specifications follow the pattern of t(first two letters of functional block)(signal)(state)(reference)(state) for inputs

and t(first two letters of functional block)(reference)(state)(signal)(state) for outputs. For example, tTRDVKH symbolizes TBI receive timing

(TR) with respect to the time data input signals (D) reach the valid state (V) relative to the tTRX clock reference (K) going to

the high (H) state or setup time. Also, tTRDXKH symbolizes TBI receive timing (TR) with respect to the time data input signals

(D) went invalid (X) relative to the tTRX clock reference (K) going to the high (H) state. In general, the clock reference symbol

is based on three letters representing the clock of a particular function. For example, the subscript of tTRX represents the TBI

(T) receive (RX) clock. For rise and fall times, the latter convention is used with the appropriate letter: R (rise) or F (fall). For

symbols representing skews, the subscript SK followed by the clock that is being skewed (TRX).

2. Setup and hold time of even numbered RCG are measured from the riding edge of PMA_RX_CLK1. Setup and hold times

of odd-numbered RCG are measured from the riding edge of PMA_RX_CLK0.

MPC8349E PowerQUICC™ II Pro Integrated Host Processor Hardware Specifications, Rev. 10

Freescale Semiconductor

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