參數(shù)資料
型號: MC9328MX1VM20
廠商: Freescale Semiconductor
文件頁數(shù): 28/100頁
文件大?。?/td> 0K
描述: IC MCU I.MX 200MHZ 256-MAPBGA
標準包裝: 152
系列: i.MX1
核心處理器: ARM9
芯體尺寸: 32-位
速度: 200MHz
連通性: EBI/EMI,I²C,MMC,智能卡,SPI,SSI,UART/USART,USB
外圍設備: DMA,I²S,LCD,POR,PWM,WDT
輸入/輸出數(shù): 110
程序存儲器類型: ROMless
電壓 - 電源 (Vcc/Vdd): 1.7 V ~ 3.3 V
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 256-MAPBGA
包裝: 托盤
Functional Description and Application Information
MC9328MX1 Technical Data, Rev. 7
Freescale Semiconductor
33
4.4.2.3
WAIT Write Cycle without DMA
Figure 8. WAIT Write Cycle without DMA
12
Wait pulse width
1T
1020T
ns
Note:
1. T is the system clock period. (For 96 MHz system clock, T=10.42 ns)
2. OE and EB assertion time is programmable by OEA bit in CS5L register. EB assertion in read cycle will occur only when
EBC bit in CS5L register is clear.
3. Address becomes valid and CS asserts at the start of read access cycle.
4. The external wait input requirement is eliminated when CS5 is programmed to use internal wait state.
Table 15. WAIT Write Cycle without DMA: WSC = 111111, DTACK_SEL=1, HCLK=96MHz
Number
Characteristic
3.0 ± 0.3 V
Unit
Minimum
Maximum
1CS5 assertion time
See note 2
ns
2EB assertion time
See note 2
ns
3CS5 pulse width
3T
ns
4RW negated before CS5 is negated
2.5T-0.29
2.5T+0.68
ns
5RW negated to Address inactive
67.28
ns
6
Wait asserted after CS5 asserted
1020T
ns
Table 14. DTACK WAIT Read Cycle DMA Enabled: WSC = 111111, DTACK_SEL=1, HCLK=96MHz (Continued)
Number
Characteristic
3.0 ± 0.3 V
Unit
Minimum
Maximum
OE
WAIT
Address
EB
CS5
RW
(logic high)
programmable
min 0ns
programmable
min 0ns
1
2
3
8
9
5
6
7
11
10
12
4
(output from
i.MX1)
DATABUS
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