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參數(shù)資料
| 型號(hào)： | MC9328MX21VM |
| 廠商： | Freescale Semiconductor |
| 文件頁(yè)數(shù)： | 32/100頁(yè) |
| 文件大小： | 0K |
| 描述： | IC MCU I.MX21 266MHZ 289-MAPBGA |
| 標(biāo)準(zhǔn)包裝： | 90 |
| 系列： | i.MX21 |
| 核心處理器： | ARM9 |
| 芯體尺寸： | 32-位 |
| 速度： | 266MHz |
| 連通性： | 1 線(xiàn)，EBI/EMI，I²C，IrDA，MMC，智能卡，SPI，SSI，UART/USART，USB OTG |
| 外圍設(shè)備： | DMA，I²S，LCD，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 192 |
| 程序存儲(chǔ)器類(lèi)型： | ROMless |
| 電壓 - 電源 (Vcc/Vdd)： | 1.45 V ~ 3.3 V |
| 振蕩器型： | 外部 |
| 工作溫度： | 0°C ~ 70°C |
| 封裝/外殼： | 289-LFBGA |
| 包裝： | 托盤(pán) |
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Specifications
MC9328MX21 Technical Data, Rev. 3.4
Freescale Semiconductor
37
3.12.1
Command Response Timing on MMC/SD Bus
The card identification and card operation conditions timing are processed in open-drain mode. The card
response to the host command starts after exactly NID clock cycles. For the card address assignment,
SET_RCA is also processed in the open-drain mode. The minimum delay between the host command and
card response is NCR clock cycles as illustrated in Figure 26. The symbols for Figure 26 through
Figure 26. Timing Diagrams at Identification Mode
After a card receives its RCA, it switches to data transfer mode. As shown on the first diagram in
Figure 27, SD_CMD lines in this mode are driven with push-pull drivers. The command is followed by a
period of two Z bits (allowing time for direction switching on the bus) and then by P bits pushed up by the
responding card. The other two diagrams show the separating periods NRC and NCC.
Card Active
Host Active
Symbol
Definition
Symbol
Definition
Z
High impedance state
S
Start bit (0)
D
Data bits
T
Transmitter bit
(Host = 1, Card = 0)
*
Repetition
P
One-cycle pull-up (1)
CRC
Cyclic redundancy check bits (7 bits)
E
End bit (1)
SET_RCA Timing
Identification Timing
Host Command
CID/OCR
NID cycles
CMD
Content
S T
E Z
Z S T
Content
Z Z
******
CRC
Z
Host Command
CID/OCR
NCR cycles
CMD
Content
S T
E Z
Z S T
Content
Z Z
******
CRC
Z
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| MC9328MX21VM | 制造商:Freescale Semiconductor 功能描述:Microprocessor |
| MC9328MX21VMR2 | 功能描述:處理器 - 專(zhuān)門(mén)應(yīng)用 DB I.MX21 17X17 PB-FR RoHS:否 制造商:Freescale Semiconductor 類(lèi)型:Multimedia Applications 核心:ARM Cortex A9 處理器系列:i.MX6 數(shù)據(jù)總線(xiàn)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 |
| MC9328MXL | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:MX Family of applications processors |
| MC9328MXL/D | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:i.MX Integrated Portable System Processor |
| MC9328MXL_06 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:MX Family of applications processors |
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