PCIMX258CJM4A datasheet(98/144 Pages) FREESCALE

Part #	PCIMX258CJM4A

Description	i.MX25 Applications Processor for Consumer and Industrial Products

PDF	144 Pages

Scroll/Zoom	100%

Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 3

Freescale Semiconductor

Figure 70. Active-Low-Reset SIM Card Reset Sequence

Table 74 defines the general timing requirements for the SIM interface.

3.7.14.2

SIM Power-Down Sequence

Figure 71 shows the SIM interface power-down AC timing diagram. Table 75 shows the timing

requirements for parameters (SI7–SI10) shown in the figure.

The power-down sequence for the SIM interface is as follows:

•SIMx_SIMPDy port detects the removal of the SIM Card

•SIMx_RSTy is negated

•SIMx_CLKy is negated

•SIMx_DATAy_RX_TX is negated

•SIMx_SVENy is negated

Each of the above steps requires one CKIL period (usually 32 kHz). Power-down may be initiated by a

SIM card removal detection; or it may be launched by the processor.

Table 74. Timing Specifications, Active-Low-Reset SIM Card Reset Sequence

Ref No.

Min.

Max.

Unit

—

200

clk cycles

400

40,000

clk cycles

40,000

—

clk cycles

SIMx_SVENy

SIMx_CLKy

SIMx_DATAy_RX_TX

RESPONSE

SIMx_RSTy

PCIMX258CJM4A Datasheet(PDF) 98 Page - Freescale Semiconductor, Inc