參數(shù)資料
型號(hào): MCIMX258CVM4
廠商: Freescale Semiconductor
文件頁數(shù): 152/153頁
文件大小: 0K
描述: IC MPU I.MX25 IND 400MAPBGA
標(biāo)準(zhǔn)包裝: 90
系列: i.MX25
核心處理器: ARM9
芯體尺寸: 32-位
速度: 400MHz
連通性: 1 線,CAN,EBI/EMI,以太網(wǎng),I²C,MMC,智能卡,SPI,SSI,UART/USART,USB OTG
外圍設(shè)備: DMA,I²S,LCD,POR,PWM,WDT
輸入/輸出數(shù): 128
程序存儲(chǔ)器類型: 外部程序存儲(chǔ)器
RAM 容量: 144K x 8
電壓 - 電源 (Vcc/Vdd): 1.15 V ~ 1.52 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 3x12b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 400-LFBGA
包裝: 托盤
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 10
98
Freescale Semiconductor
Figure 70. Active-Low-Reset SIM Card Reset Sequence
Table 76 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 77 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 76. Timing Specifications, Active-Low-Reset SIM Card Reset Sequence
Ref No.
Min.
Max.
Unit
1
200
clk cycles
2
400
40,000
clk cycles
3
40,000
clk cycles
SIMx_SVENy
SIMx_CLKy
SIMx_DATAy_RX_TX
2
T0
1
RESPONSE
SIMx_RSTy
T1
3
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