IMX51 View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

IMX51

i.MX51 Applications Processors for Consumer and Industrial Products

Freescale Semiconductor 

Electrical Characteristics

4.6.2 WDOG Reset Timing Parameters

Figure 13 shows the WDOG reset timing and Table 46 lists the timing parameters.

WATCHDOG_RST

(Input)

CC5

Figure 13. WATCHDOG_RST Timing Diagram

Table 46. WATCHDOG_RST Timing Parameters

ID

Parameter

Min

Max

Unit

CC5 Duration of WATCHDOG_RESET Assertion

1

—

TCKIL

NOTE

CKIL is approximately 32 kHz. TCKIL is one period or approximately 30 μs.

4.6.3 AUDMUX Timing Parameters

The AUDMUX provides a programmable interconnect logic for voice, audio and data routing between

internal serial interfaces (SSIs) and external serial interfaces (audio and voice codecs). The AC timing of

AUDMUX external pins is hence governed by the SSI module.

4.6.4 Clock Amplifier Parameters (CKIH1, CKIH2)

The input to Clock Amplifier (CAMP) is internally ac-coupled allowing direct interface to a square wave

or sinusoidal frequency source. No external series capacitors are required. Table 47 shows the CAMP

electrical parameters.

Table 47. CAMP Electrical Parameters (CKIH1, CKIH2)

Parameter

Input frequency

VIL (for square wave input)

VIH (for square wave input)

Sinusoidal input amplitude

Output duty cycle

Min

Typ

8.0

—

0

—

NVCC_PER3 - 0.25

—

0.4

—

45

50

Max

40.0

0.3

NVCC_PER3

VDD

55

Unit

MHz

V

V

Vp-p

%

i.MX51 Applications Processors for Consumer and Industrial Products, Rev. 6

48

Freescale Semiconductor

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