MCIMX251AJM4AR2 Freescale Semiconductor, MCIMX251AJM4AR2 Datasheet - Page 51
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MCIMX251AJM4AR2
Manufacturer Part Number
MCIMX251AJM4AR2
Description
Processors - Application Specialized IMX25 1.2 AUTO
Manufacturer
Freescale Semiconductor
Datasheet
1.MCIMX251AJM4AR2.pdf
(140 pages)
Specifications of MCIMX251AJM4AR2
Core
ARM926EJ-S
Processor Series
MCIMX25
Maximum Clock Frequency
400 MHz
Instruction / Data Cache Memory
16 KB
Data Ram Size
128 KB
Operating Supply Voltage
1.15 V to 1.52 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
MAPBGA-400
Interface Type
USB
Memory Type
DDR2
Minimum Operating Temperature
- 40 C
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Timing parameters for UDMA out-bursts are listed in
3.7.3
The AUDMUX provides a programmable interconnect logic for voice, audio, and data routing between
internal serial interfaces (SSI and SAP) and external serial interfaces (audio and voice codecs). The AC
timing of AUDMUX external pins is governed by the SSI modules. For more information, see
Section 3.7.17, “Synchronous Serial Interface (SSI)
3.7.4
The CSI enables the chip to connect directly to external CMOS image sensors, which are classified as
dumb or smart as follows:
The following subsections describe the CSI timing in gated and ungated clock modes.
Freescale Semiconductor
Parameter
•
•
t2cyc
ATA
tenv
tdvh
trfs1
tack
tdvs
tcyc
tcvh
tmli
tss
—
—
tli
tli
tli
Dumb sensors only support traditional sensor timing (vertical sync (VSYNC) and horizontal sync
(HSYNC)) and output-only Bayer and statistics data.
Smart sensors support CCIR656 video decoder formats and perform additional processing of the
image (for example, image compression, image pre-filtering, and various data output formats).
Digital Audio Mux (AUDMUX) Timing
CMOS Sensor Interface (CSI) Timing
Parameter
tdzfs_mli
Spec
tdzfs
tenv
tdvh
tack
tdvs
tcyc
tcvh
trfs
ton
toff
tss
tli1
tli2
tli3
—
i.MX25 Applications Processor for Automotive Products, Rev. 9
tack(min.) = (time_ack
tenv(min.) = (time_env
tenv(max.) = (time_env
tdvs = (time_dvs
tdvs = (time_dvh
tcyc = time_cyc
t2cyc = time_cyc
trfs = 1.6
tdzfs = time_dzfs
tss = time_ss
tdzfs_mli =max.(time_dzfs, time_mli)
tli1 > 0
tli2 > 0
tli3 > 0
tcvh = (time_cvh
ton = time_on
toff = time_off
Table 40. Timing Parameters UDMA Out-Bursts
T + tsui + tco + tbuf + tbuf
T – (tskew1 + tskew2)
T – tskew1
T – tskew1
T – (tskew1 + tskew2)
T) – (tskew1 + tskew2)
T) – (tskew1 + tskew2)
T) – (tskew1 + tskew2)
2
T – (tskew1)
T
T) – (tskew1 + tskew2)
T) – (tskew1 + tskew2)
T) + (tskew1 + tskew2)
Timing.”
Value
Table
T – (tskew1 + tskew2)
40.
How to Meet?
time_dzfs
time_ack
time_env
time_dvs
time_dvh
time_cvh
time_cyc
time_cyc
time_ss
—
—
—
—
—
—
51
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