MCIMX255AJM4AR2 Freescale Semiconductor, MCIMX255AJM4AR2 Datasheet - Page 108

• Manufacturer Part Number: MCIMX255AJM4AR2
• Description: Processors - Application Specialized IMX25 1.2 AUTO
• Manufacturer: Freescale Semiconductor

Specifications of MCIMX255AJM4AR2

• 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

Note:
108
• All the timings for the SSI are given for a non-inverted serial clock polarity (TSCKP/RSCKP = 0) and a non-inverted frame sync
• All timings are on pads when SSI is being used for data transfer.
• ”Tx” and “Rx” refer, respectively, to the transmit and receive sections of the SSI.
• For internal frame sync operation using external clock, the FS timing is the same as that of Tx data (for example, during AC97
(TFSI/RFSI = 0). If the polarity of the clock and/or the frame sync have been inverted, all the timing remains valid by inverting
the clock signal STCK/SRCK and/or the frame sync STFS/SRFS shown in the tables figures.
mode of operation).
SS22
SS23
SS24
SS25
SS26
SS27
SS29
SS31
SS33
SS37
SS38
SS39
SS44
SS45
SS46
ID
(Tx/Rx) CK clock period
(Tx/Rx) CK clock high period
(Tx/Rx) CK clock rise time
(Tx/Rx) CK clock low period
(Tx/Rx) CK clock fall time
FS (bl) low/ high setup before (Tx) CK falling
FS (bl) low/ high setup before (Tx) CK falling
FS (wl) low/ high setup before (Tx) CK falling
FS (wl) low/ high setup before (Tx) CK falling
(Tx) CK high to STXD valid from high impedance
(Tx) CK high to STXD high/low
(Tx) CK high to STXD high impedance
SRXD setup before (Tx) CK falling
SRXD hold after (Tx) CK falling
SRXD rise/fall time
i.MX25 Applications Processor for Automotive Products, Rev. 9
Table 83. SSI Transmitter Timing with External Clock
Parameter
Synchronous External Clock Operation
External Clock Operation
–10.0
–10.0
Min.
81.4
36.0
36.0
10.0
10.0
10.0
2.0
—
—
—
—
—
—
Freescale Semiconductor
Max.
15.0
15.0
15.0
15.0
15.0
6.0
6.0
6.0
—
—
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns