MCIMX31LCVMN4C Freescale Semiconductor, MCIMX31LCVMN4C Datasheet - Page 24

• Manufacturer Part Number: MCIMX31LCVMN4C
• Description: IC MPU MAP I.MX31L 473-MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX31r

Specifications of MCIMX31LCVMN4C

• Core Processor: ARM11
• Core Size: 32-Bit
• Speed: 400MHz
• Connectivity: 1-Wire, ATA, EBI/EMI, FIR, I²C, MMC/SD, PCMCIA, SIM, SPI, SSI, UART/USART, USB, USB OTG
• Peripherals: DMA, LCD, POR, PWM, WDT
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.22 V ~ 3.3 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 473-MAPBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Electrical Characteristics
Figure 12
timing parameters for MDMA read and write.
24
Parameter
ATA
—
—
tA
t1
t2
t9
t3
t4
t0
shows timing for MDMA read,
from
Parameter
Figure 11
t2w
—
tA
—
—
—
t1
t9
t4
t1 (min) = time_1 * T – (tskew1 + tskew2 + tskew5)
t2 (min) = time_2w * T – (tskew1 + tskew2 + tskew5)
t9 (min) = time_9 * T – (tskew1 + tskew2 + tskew6)
t3 (min) = (time_2w – time_on)* T – (tskew1 + tskew2 +tskew5)
t4 (min) = time_4 * T – tskew1
tA = (1.5 + time_ax) * T – (tco + tsui + tcable2 + tcable2 + 2*tbuf)
t0(min) = (time_1 + time_2 + time_9) * T
Avoid bus contention when switching buffer on by making ton long enough.
Avoid bus contention when switching buffer off by making toff long enough.
MCIMX31C/MCIMX31LC Technical Data, Rev. 4.3
Figure 11. Multiword DMA (MDMA) Timing
Table 23. PIO Write Timing Parameters
Figure 13
shows timing for MDMA write, and
Value
Freescale Semiconductor
Table 24
If not met, increase
time_1, time_2r,
Controlling
Variable
time_2w
time_2w
time_ax
time_9
time_4
time_9
time_1
—
—
lists the