MCIMX251AVM4 Freescale Semiconductor, MCIMX251AVM4 Datasheet - Page 80

• 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: -

3.7.7
This section describes general timing requirements for ESAI, as well as the ESAI transmit and receive
timing.
Figure 50
80
shows the ESAI transmit timing diagram.
(internal signal)
Transmitter #0
Note: In network mode, output flag transitions can occur at the start of each time slot within the
frame. In normal mode, the output flag state is asserted for the entire frame period.
Enhanced Serial Audio Interface (ESAI) Timing
(Input/Output)
FST (word) in
drive enable
FST (word)
FST (bit) in
Flags out
FST (bit)
Data out
SCKT
out
out
i.MX25 Applications Processor for Automotive Products, Rev. 8
63
89
Figure 50. ESAI Transmit Timing
78
62
82
84
93
92
79
86
91
64
90
85
94
first bit
86
91
88
last bit
See Note
83
Freescale Semiconductor
87