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參數(shù)資料
| 型號： | MCIMX514AJM6C |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PBGA529 |
| 封裝： | 19 X 19 MM, 0.8 MM PITCH, ROHS COMPLIANT, BGA-529 |
| 文件頁數(shù)： | 13/172頁 |
| 文件大小： | 2218K |
| 代理商： | MCIMX514AJM6C |
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Features
i.MX51A Automotive and Infotainment Applications Processors, Rev. 4
Freescale Semiconductor
11
2.1
Special Signal Considerations
Table 3 lists special signal considerations for the i.MX51. The signal names are listed in alphabetical order.
The package contact assignments are found in Section 5, “Package Information and Contact
Assignments.” Signal descriptions are defined in the i.MX51 Multimedia Applications Processor
Reference Manual (MCIMX51RM).
WDOG-2
(TZ)
Watch Dog
(TrustZone)
Timer
Peripherals
The TrustZone Watchdog (TZ WDOG) timer module protects against TrustZone
starvation by providing a method of escaping normal mode and forcing a switch
to the TZ mode. TZ starvation is a situation where the normal OS prevents
switching to the TZ mode. This situation should be avoided, as it can
compromise the system’s security. Once the TZ WDOG module is activated, it
must be serviced by TZ software on a periodic basis. If servicing does not take
place, the timer times out. Upon a time-out, the TZ WDOG asserts a TZ mapped
interrupt that forces switching to the TZ mode. If it is still not served, the TZ
WDOG asserts a security violation signal to the CSU. The TZ WDOG module
cannot be programmed or deactivated by a normal mode SW.
XTALOSC
Crystal
Oscillator I/F
Clocking
The XTALOSC module allows connectivity to an external crystal.
Table 3. Special Signal Considerations
Signal Name
Remarks
CKIH1, CKIH2
Inputs feeding CAMPs (Clock Amplifiers) that have on-chip ac coupling precluding the need for
external coupling capacitors. The CAMPs are enabled by default, but the main clocks feeding the
on-chip clock tree are sourced from XTAL/EXTAL by default. Optionally, the use of a low jitter
external oscillators to feed CKIH1 or CKIH2 (while not required) can be an advantage if low jitter
or special frequency clock sources are required by modules driven by CKIH1 or CKIH2. See CCM
chapter in the i.MX51 Multimedia Applications Processor Reference Manual (MCIMX51RM) for
details on the respective clock trees.
After initialization, the CAMPs could be disabled (if not used) by CCM registers (CCR CAMPx_EN
field). If disabled, the on-chip CAMP output is low; the input is irrelevant. If unused, the user should
tie CKIH1/CKIH2 to GND for best practice.
CLK_SS
Clock Source Select is the input that selects the default reference clock source providing input to
the DPLLs. To use a reference in the megahertz range per Table 8, tie CLK_SS to GND to select
EXTAL/XTAL. To use a reference in the kilohertz range per Table 59, tie CLK_SS to NVCC_PER3
to select CKIL. After initialization, the reference clock source can be changed (initial setting is
overwritten).
Note: Because this input has a keeper circuit, Freescale recommends tying this input to directly
to GND or NVCC_PER3. If a series resistor is used its value must be
≤ 4.7 kΩ.
COMP
The user should bypass this reference with an external 0.1
F capacitor tied to GND. If TV OUT
is not used, float the COMP contact and ensure the DACs are powered down.
Note: Previous engineering samples required this reference to be bypassed to a positive supply.
FASTR_ANA and
FASTR_DIG
These signals are reserved for Freescale manufacturing use only. User must tie both connections
to GND.
GPANAIO
This signal is reserved for Freescale manufacturing use only. Users should float this output.
Table 2. i.MX51A Digital and Analog Modules (continued)
Block
Mnemonic
Block Name
Subsystem
Brief Description
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCIMX514AJM6CR2 | 制造商:Freescale Semiconductor 功能描述:ELVIS 3.0 AUTO - Tape and Reel |
| MCIMX515CJM6C | 功能描述:處理器 - 專門應(yīng)用 iMX515 App Processor RoHS:否 制造商:Freescale Semiconductor 類型:Multimedia Applications 核心:ARM Cortex A9 處理器系列:i.MX6 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:1 GHz 指令/數(shù)據(jù)緩存: 數(shù)據(jù) RAM 大小:128 KB 數(shù)據(jù) ROM 大小: 工作電源電壓: 最大工作溫度:+ 95 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MAPBGA-432 |
| MCIMX515CJM6CR2 | 功能描述:處理器 - 專門應(yīng)用 i.MX51 32bit 800 MHz RoHS:否 制造商:Freescale Semiconductor 類型:Multimedia Applications 核心:ARM Cortex A9 處理器系列:i.MX6 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:1 GHz 指令/數(shù)據(jù)緩存: 數(shù)據(jù) RAM 大小:128 KB 數(shù)據(jù) ROM 大小: 工作電源電壓: 最大工作溫度:+ 95 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MAPBGA-432 |
| MCIMX515DJM8C | 功能描述:處理器 - 專門應(yīng)用 iMX515 App Processor Extended Temp RoHS:否 制造商:Freescale Semiconductor 類型:Multimedia Applications 核心:ARM Cortex A9 處理器系列:i.MX6 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:1 GHz 指令/數(shù)據(jù)緩存: 數(shù)據(jù) RAM 大小:128 KB 數(shù)據(jù) ROM 大小: 工作電源電壓: 最大工作溫度:+ 95 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MAPBGA-432 |
| MCIMX515DJM8C | 制造商:Freescale Semiconductor 功能描述:; LEADED PROCESS COMPATIBLE:YES; PEAK RE |
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