MCIMX251AJM4 Freescale Semiconductor, MCIMX251AJM4 Datasheet - Page 45

• Manufacturer Part Number: MCIMX251AJM4
• Description: IC MPU IMX25 AUTO 400MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX25r

Specifications of MCIMX251AJM4

• 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-MAPBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

3.7.2.1
Figure 11
Freescale Semiconductor
tcable1
tcable2
tskew2
tskew3
tskew4
tskew5
tskew6
Name
tbuf
shows a timing diagram for PIO read mode.
PIO Mode Timing Parameters
Maximum difference in buffer propagation delay for any of the following signals
ata_cs0, ata_cs1, ata_da2, ata_da1, ata_da0, ata_dior, ata_diow,
ata_dmack, ata_data (write), ata_buffer_en
Maximum difference in buffer propagation delay for any of the following signals
ata_iordy, ata_data (read)
Maximum buffer propagation delay
cable propagation delay for ata_data
cable propagation delay for control signals ata_dior, ata_diow, ata_iordy,
ata_dmack
Maximum difference in cable propagation delay between ata_iordy and
ata_data (read)
Maximum difference in cable propagation delay between (ata_dior, ata_diow,
ata_dmack) and ata_cs0, ata_cs1, ata_da2, ata_da1, ata_da0,
ata_data(write)
Maximum difference in cable propagation delay without accounting for ground
bounce
i.MX25 Applications Processor for Automotive Products, Rev. 8
READ Data(15:0)
ADDR
(See note 1)
Table 35. Timing Parameters (continued)
DIOR
IORDY
IORDY
Figure 11. PIO Read Mode Timing
Description
t1
tA
t2r
t5
trd1
t9
t6
Value/Contributing Factor
Transceiver
Transceiver
Transceiver
Cable
Cable
Cable
Cable
Cable
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