MCIMX251AVM4 Freescale Semiconductor, MCIMX251AVM4 Datasheet - Page 55

• Manufacturer Part Number: MCIMX251AVM4
• Description: IC MPU I.MX25 AUTO 400MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX25r

Specifications of MCIMX251AVM4

• Core Processor: ARM9
• Core Size: 32-Bit
• Speed: 400MHz
• Connectivity: 1-Wire, CAN, EBI/EMI, Ethernet, I²C, MMC, SmartCard, SPI, SSI, UART/USART, USB OTG
• Peripherals: DMA, I²S, POR, PWM, WDT
• Number Of I /o: 128
• Program Memory Type: External Program Memory
• Ram Size: 144K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.52 V
• Data Converters: A/D 3x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 400-LFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

3.7.5
Figure 23
describes the timing parameters (t1–t14) that are shown in the figures. The values shown in timing
diagrams were tested using a worst-case core voltage of 1.1 V, slow pad voltage of 2.68 V, and fast pad
voltage of 1.65 V.
Freescale Semiconductor
(output)
(input)
SCLK
(output)
MOSI
SCLK
(input)
MISO
MISO
MOSI
(input)
RDY
SSn
SSn
and
Configurable Serial Peripheral Interface (CSPI) Timing
Figure 24
t8
t6
t6’
t10
t10
t12
t12
i.MX25 Applications Processor for Automotive Products, Rev. 8
provide CSPI master and slave mode timing diagrams, respectively.
t13
t13
t11
t11
Figure 23. CSPI Master Mode Timing Diagram
Figure 24. CSPI Slave Mode Timing Diagram
t1
t1’
t2
t2’
t3
t3’
t4
t4
t4
t4
t7
t7’
t9
t5
t5’
t14
t14
Table 43
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