Texas Instruments SM320C6455-EP manual Utopia Electrical Data/Timing, Uxclk, Urclk

Models: SM320C6455-EP

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SM320C6455-EP

FIXED-POINT DIGITAL SIGNAL PROCESSOR

www.ti.com

SPRS462B – SEPTEMBER 2007 – REVISED JANUARY 2008

7.19.3 UTOPIA Electrical Data/Timing

Table 7-106. Timing Requirements for UXCLK(1) (see Figure 7-74)

 

 

 

-720

 

 

 

 

 

-850

 

 

NO.

 

 

A-1000/-1000

UNIT

 

 

 

-1200

 

 

 

 

 

MIN

MAX

 

1

tc(UXCK)

Cycle time, UXCLK

20

 

ns

2

tw(UXCKH)

Pulse duration, UXCLK high

0.4tc(UXCK)

0.6tc(UXCK)

ns

3

tw(UXCKL)

Pulse duration, UXCLK low

0.4tc(UXCK)

0.6tc(UXCK)

ns

4

tt(UXCK)

Transition time, UXCLK

 

2

ns

(1)The reference points for the rise and fall transitions are measured at VIL MAX and VIH MIN.

1

4

2

UXCLK

3

4

Figure 7-74. UXCLK Timing

Table 7-107. Timing Requirements for URCLK(1) (see Figure 7-75)

 

 

 

-720

 

 

 

 

 

-850

 

 

NO.

 

 

A-1000/-1000

UNIT

 

 

 

-1200

 

 

 

 

 

MIN

MAX

 

1

tc(URCK)

Cycle time, URCLK

20

 

ns

2

tw(URCKH)

Pulse duration, URCLK high

0.4tc(URCK)

0.6tc(URCK)

ns

3

tw(URCKL)

Pulse duration, URCLK low

0.4tc(URCK)

0.6tc(URCK)

ns

4

tt(URCK)

Transition time, URCLK

 

2

ns

(1)The reference points for the rise and fall transitions are measured at VIL MAX and VIH MIN.

1

4

2

URCLK

3

4

Figure 7-75. URCLK Timing

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C64x+ Peripheral Information and Electrical Specifications

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Texas Instruments SM320C6455-EP Utopia Electrical Data/Timing, Timing Requirements for UXCLK1 see Figure, Uxclk, Urclk