MCIMX257DVM4 Freescale Semiconductor, MCIMX257DVM4 Datasheet - Page 51
![no-image](/images/manufacturer_photos/0/2/262/freescale_semiconductor_sml.jpg)
MCIMX257DVM4
Manufacturer Part Number
MCIMX257DVM4
Description
IC MPU I.MX25 COMM 400MAPBGA
Manufacturer
Freescale Semiconductor
Series
i.MX25r
Datasheet
1.MCIMX257CJM4.pdf
(154 pages)
Specifications of MCIMX257DVM4
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, LCD, 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
-20°C ~ 70°C
Package / Case
400-LFBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCIMX257DVM4
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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3.7.2.4
Figure 18
Figure 19
Freescale Semiconductor
shows the timing for start of UDMA out-transfer.
shows timing for host-terminated UDMA out-transfer.
UDMA Out-Transfer Timing
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 8
Figure 19. Timing for Host-Terminated UDMA Out-Transfer
DATA WRITE
buffer_en
DMACK
DATA WRITE
DMARQ
DIOW
DIOR
IORDY
buffer_en
ADDR
DMARQ
DMACK
DIOW
IORDY
Figure 18. Timing for UDMA Out-Transfer Start
ADDR
DIOR
tack
tss
ton
tenv
tcyc
tcyc1
tdzfs tdvs tdvh tdvs
tli1
tli3
tli2
tcyc
tdzfs_mli
tcyc
tack
tcvh
trfs1
toff
51
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