參數(shù)資料
型號(hào): MC9328MX21VK
廠商: Motorola, Inc.
英文描述: i.MX family of microprocessors
中文描述: i.MX系列微處理器
文件頁(yè)數(shù): 7/96頁(yè)
文件大小: 1495K
代理商: MC9328MX21VK
Signals and Connections
MC9328MX1 Advance Information, Rev. 4
Freescale Semiconductor
7
DQM [3:0]
SDRAM data enable
CSD0
SDRAM/SyncFlash Chip Select signal which is multiplexed with the CS2 signal. These two signals
are selectable by programming the system control register.
CSD1
SDRAM/SyncFlash Chip Select signal which is multiplex with CS3 signal. These two signals are
selectable by programming the system control register. By default, CSD1 is selected, so it can be
used as SyncFlash boot chip select by properly configuring BOOT [3:0] input pins.
RAS
SDRAM/SyncFlash Row Address Select signal
CAS
SDRAM/SyncFlash Column Address Select signal
SDWE
SDRAM/SyncFlash Write Enable signal
SDCKE0
SDRAM/SyncFlash Clock Enable 0
SDCKE1
SDRAM/SyncFlash Clock Enable 1
SDCLK
SDRAM/SyncFlash Clock
RESET_SF
SyncFlash Reset
Clocks and Resets
EXTAL16M
Crystal input (4 MHz to 16 MHz), or a 16 MHz oscillator input when internal oscillator circuit is shut
down.
XTAL16M
Crystal output
EXTAL32K
32 kHz crystal input
XTAL32K
32 kHz crystal output
CLKO
Clock Out signal selected from internal clock signals. Please refer to clock controller for internal
clock selection.
RESET_IN
Master Reset—External active low Schmitt trigger input signal. When this signal goes active, all
modules (except the reset module and the clock control module) are reset.
RESET_OUT
Reset Out—Internal active low output signal from the Watchdog Timer module and is asserted from
the following sources: Power-on reset, External reset (RESET_IN), and Watchdog time-out.
POR
Power On Reset—Internal active high Schmitt trigger input signal. The POR signal is normally
generated by an external RC circuit designed to detect a power-up event.
JTAG
TRST
Test Reset Pin—External active low signal used to asynchronously initialize the JTAG controller.
TDO
Serial Output for test instructions and data. Changes on the falling edge of TCK.
TDI
Serial Input for test instructions and data. Sampled on the rising edge of TCK.
Table 3. Signal Names and Descriptions (Continued)
Signal Name
Function/Notes
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC9328MX21VK 制造商:Freescale Semiconductor 功能描述:Microprocessor
MC9328MX21VKR2 功能描述:處理器 - 專門應(yīng)用 DB I.MX21 PB-FR 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(shí)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
MC9328MX21VM 功能描述:處理器 - 專門應(yīng)用 DB I.MX21 17X17 PB-FR 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(shí)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
MC9328MX21VM 制造商:Freescale Semiconductor 功能描述:Microprocessor
MC9328MX21VMR2 功能描述:處理器 - 專門應(yīng)用 DB I.MX21 17X17 PB-FR 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(shí)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