参数资料
型号: MC9328MX21DVK
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 266 MHz, MICROPROCESSOR, PBGA289
封装: 14 X 14 MM, 1.41 MM HEIGHT, 0.65 MM PITCH, LEAD FREE, PLASTIC, MAPBGA-289
文件页数: 17/100页
文件大小: 1979K
代理商: MC9328MX21DVK
Specifications
MC9328MX21 Technical Data, Rev. 3.4
Freescale Semiconductor
23
Figure 7. MMD (ATI) Drives Clock, MMD Write BMI Timing
(MMD_MODE_SEL=1, MASTER_MODE_SEL=0, MMD_CLKOUT=0)
Note:
All timings assume that the hclk is running at 133 MHz.
Note:
At this mode, the maximum frequency of the BMI_CLK/CS can be up to 36 MHz (doubles as maximum data pad speed).
3.8.1.2
BMI Drives the BMI_CLK/CS
In this mode MMD_MODE_SEL and MMD_CLKOUT are both set. The software must know which
mode it is now (READ or WRITE). When the BMI_WRITE is high, BMI drives BMI_CLK/CS out if the
TxFIFO is not emptied. When BMI_WRITE is low, user can write a 1 to READ bit of control register1 to
issue a write cycle (MMD write BMI).
3.8.1.3
MMD Read BMI Timing
Figure 13 shows the MMD read BMI timing when BMI drives the BMI_CLK/CS. When the BMI_WRITE
is high, the BMI drives BMI_CLK/CS out if data is written to TxFIFO (BMI_READ_REQ become high),
BMI puts data into data bus and enable data out on the rising edge of BMI_CLK/CS. The MMD devices
can latch the data on each falling edge of BMI_CLK/CS.
It is recommended that the MMD do not change the BMI_WRITE signal from high to low when the
BMI_READ_REQ is asserted. If user writes data to the TxFIFO when the BMI_WRITE is low, the BMI
will drive BMI_CLK/CS out once the BMI_WRITE is changed from low to high.
Table 15. MMD Write BMI Timing
Item
Symbol
Minimum
Typical
Maximum
Unit
write setup time
Ts
11
ns
write
h
old
t
ime
Th
0––
ns
receive data setup time
Tds
5
ns
Can be asserted any time
BMI_CLK/CS
BMI_READ_REQ
BMI_WRITE
BMI_D[15:0]
RxD1
RxD2
Last RxD
Ts
Tds
Th
相关PDF资料
PDF描述
MC9328MX21VH 266 MHz, MICROPROCESSOR, PBGA289
MC9328MX21CVG 266 MHz, MICROPROCESSOR, PBGA289
MC9328MX21CVH 266 MHz, MICROPROCESSOR, PBGA289
MC9328MX21DVH 266 MHz, MICROPROCESSOR, PBGA289
MC9328MX21DVG 266 MHz, MICROPROCESSOR, PBGA289
相关代理商/技术参数
参数描述
MC9328MX21DVK 制造商:Freescale Semiconductor 功能描述:Microprocessor
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MC9328MX21DVM 功能描述:处理器 - 专门应用 DB I.MX21 17X17 PB-FR RoHS:否 制造商:Freescale Semiconductor 类型:Multimedia Applications 核心:ARM Cortex A9 处理器系列:i.MX6 数据总线宽度:32 bit 最大时钟频率:1 GHz 指令/数据缓存: 数据 RAM 大小:128 KB 数据 ROM 大小: 工作电源电压: 最大工作温度:+ 95 C 安装风格:SMD/SMT 封装 / 箱体:MAPBGA-432
MC9328MX21DVMR2 功能描述:处理器 - 专门应用 DB I.MX21 17X17 PB-FR RoHS:否 制造商:Freescale Semiconductor 类型:Multimedia Applications 核心:ARM Cortex A9 处理器系列:i.MX6 数据总线宽度:32 bit 最大时钟频率:1 GHz 指令/数据缓存: 数据 RAM 大小:128 KB 数据 ROM 大小: 工作电源电压: 最大工作温度:+ 95 C 安装风格:SMD/SMT 封装 / 箱体:MAPBGA-432
MC9328MX21S 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:i.MX family of microprocessors 266 MHz