AM3703CUS datasheet(266/280 Pages) TI

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SWPS038-108

sdti_clk

sdti_txd[3:0]

Header

Ad[7:4]

Ad[3:0]

Da[15:12]

Da[11:8]

Da[7:4]

Da[3:0]

SD1

SD2

SD3

AM3715, AM3703

SPRS616F

– JUNE 2010 – REVISED AUGUST 2011

www.ti.com

6.6.9.2.2 SDTI

—Single-Edge Mode

Table 6-141 assumes testing over the recommended operating conditions and electrical characteristic

conditions below (see Figure 6-81).

Table 6-140. SDTI Timing Conditions

—Single-Edge Mode

TIMING CONDITION PARAMETER

VALUE

UNIT

Output Condition

CLOAD

Output load capacitance(1)

(1) Buffer strength configuration: LB0 = 1.

Table 6-141. SDTI Switching Characteristics

—Single-Edge Mode(2)

NO.

PARAMETER

OPP100

OPP50

UNIT

MIN

MAX

MIN

MAX

SD1

1 / tc(clk)

Frequency, output clock sdti_clk

34.5

MHz

SD2

tw(clk)

Pulse duration, output clock sdti_clk high or low

0.5P(1)

–

0.5P(1) +

0.5P(1)

–

0.5P(1) +

1.2

SD3

td(clk-txd)

Delay time, output clock sdti_clk

Multiplexing mode on

2.3

26.5

2.3

26.5

transition to output data

etk pins

sdti_txd[3:0] transition

Multiplexing mode on

2.3

33.2

2.3

33.2

jtag_emu pins

(1) P = sdti_clk clock period in ns

(2) See Section 4.3.4, Processor Clocks.

Figure 6-81. SDTI

—Single-Edge Mode

6.6.9.3

JTAG Interface (JTAG)

The JTAG TAP controller handles standard IEEE JTAG interfaces. The following section defines the

timing requirements for several tools used to test the device as:

•

Free-running clock tool, like XDS560 and XDS510 tools

•

Adaptive clock tool, like RealView

® ICE tool and LauterbachTM tool

6.6.9.3.1 JTAG

—Free-Running Clock Mode

Table 6-143 and Table 6-144 assume testing over the recommended operating conditions and electrical

characteristic conditions below (see Figure 6-82).

Table 6-142. JTAG Timing Conditions

—Free-Running Clock Mode

TIMING CONDITION PARAMETER

VALUE

UNIT

Input Conditions

Input signal rise time

Input signal fall time

Output Condition

CLOAD

Output load capacitance

266

Timing Requirements and Switching Characteristics

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AM3703CUS Datasheet(PDF) 266 Page - Texas Instruments

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