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參數(shù)資料
| 型號： | MC9328MXLVF15 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 150 MHz, RISC PROCESSOR, PBGA225 |
| 封裝： | 13 X 13 MM, 0.80 MM PITCH, MAPBGA-225 |
| 文件頁數(shù)： | 13/89頁 |
| 文件大小： | 1869K |
| 代理商： | MC9328MXLVF15 |
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20
MC9328MXL Advance Information
MOTOROLA
Specifications
3.8.1 DTACK Signal Description
The DTACK signal is the external input data acknowledge signal. When using the external DTACK signal
as a data acknowledge signal, the bus time-out monitor generates a bus error when a bus cycle is not
terminated by the external DTACK signal after 1022 HCLK counts have elapsed. Only CS5 group is
designed to support DTACK signal function when using the external DTACK signal for data
acknowledgement.
3.8.2 DTACK Signal Timing
Figure 6 shows the access cycle timing used by chip-select 5. The signal values and units of measure for
this figure are found in Table 12.
Figure 6. DTACK Timing, WSC=111111, DTACK_sel=0
Table 12. Access Cycle Timing Parameters
Ref
No.
Characteristic
1.8V ± 0.10V
3.0V ± 0.30V
Unit
Min
Max
Min
Max
1CS5 asserted to OE asserted
—T—T
ns
2
External DTACK input setup from CS5
asserted
0—0—
ns
3CS5 pulse width
3T
—
3T
—
ns
4
External DTACK input hold after CS5 is
negated
0
1.5T
0
1.5T
ns
5OE negated after CS5 is negated
0
4.5
0
4
ns
Note:
1. n is the number of wait states in the current memory access cycle. The max n is 1022.
2. T is the system clock period (system clock is 96 MHz).
3. The external DTACK input requirement is eliminated when CS5 is programmed to use internal wait state.
CS5
RW
OE
EXT_DTACK
HCLK
INT_DTACK
1
2
3
4
5
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC9328MXLVF20 | 制造商:Rochester Electronics LLC 功能描述:DRAGONBALL CORSICA 225 - Bulk 制造商:Motorola Inc 功能描述: |
| MC9328MXLVF20R2 | 制造商:Rochester Electronics LLC 功能描述:DRAGONBALL CORSICA 225 - Bulk |
| MC9328MXLVH15 | 制造商:FREESCALE-SEMI 功能描述: |
| MC9328MXLVH20 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:i.MX Integrated Portable System Processor |
| MC9328MXLVH20R2 | 制造商:Rochester Electronics LLC 功能描述:DRAGONBALL CORSICA - Bulk 制造商:Motorola Inc 功能描述: |
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