MCIMX255AJM4AR2 Freescale Semiconductor, MCIMX255AJM4AR2 Datasheet - Page 41

• 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

3.7
This section contains the timing and electrical parameters for i.MX25 modules.
3.7.1
Figure 7
Table 32
Figure 8
are shown in the figure.
Freescale Semiconductor
OW5
OW6
OW1
OW2
OW3
OW4
ID
ID
1-Wire bus
(OWIRE_LINE)
shows the reset and presence pulses (RPP) timing for 1-Wire.
shows write 0 sequence timing, and
lists the RPP timing parameters.
Module Timing and Electrical Parameters
Write 0 Low Time
Transmission Time Slot
1-Wire Timing Parameters
1-Wire bus
(OWIRE_LINE)
Presence Detect High
Table 32. RPP Sequence Delay Comparisons Timing Parameters
Presence Detect Low
Reset Time High
Reset Time Low
i.MX25 Applications Processor for Automotive Products, Rev. 9
Parameters
Parameter
“Reset Pulse”
1-Wire Tx
Table 33. WR0 Sequence Timing Parameters
Figure 8. Write 0 Sequence Timing Diagram
OW1
Figure 7. 1-Wire RPP Timing Diagram
Table 33
OW5
Symbol
Symbol
t
describes the timing parameters (OW5–OW6) that
WR0_low
t
t
t
t
t
RSTH
RSTL
SLOT
PDH
PDL
OW6
OW3
1-Wire Memory Device
OW2
“Presence Pulse”
Min.
480
480
OW5
Min.
15
60
60
OW4
Typ.
511
512
—
—
Typ.
100
117
Max.
240
Max.
60
—
—
120
120
Units
Units
s
s
s
s
s
s
41