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參數(shù)資料
| 型號： | NGAM386SXLV-40 |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | High-Performance, Low-Power, Embedded Microprocessors |
| 中文描述： | 高性能，低功耗，嵌入式微處理器 |
| 文件頁數(shù)： | 23/30頁 |
| 文件大?。?/td> | 582K |
| 代理商： | NGAM386SXLV-40 |
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F I N A L
Am386SX/SXL/SXLV Microprocessors Data Sheet
23
CLK2
Control
Data
Address
Reset
Valid
Valid
Valid
FLT
Figure 12. Entering and Exiting FLT (Am386SXLV Only)
SMI
16306B–008
φ
1
φ
1
φ
1
φ
1
φ
1
φ
1
φ
1
φ
1
φ
1
φ
1
Valid
CLK2
SMI
SMIADS
φ
1
φ
1
φ
1
φ
1
φ
1
φ
1
φ
1
SMM in progress
Drive released by CPU
System may initiate another
SMI when necessary*
*Once initiated, the system must hold SMI Low until the first SMIADS. At this time, the system cannot drive SMI until three
CLK2 cycles after the CPU drives SMI High. (The CPU will drive SMI High for two CLK2 cycles. The additional clock allows
the CPU to completely release SMI and prevents any driver overlap.)
CPU driving SMI
System control of SMI
16306B–011
Figure 13. Initiating and Exiting SMM (Am386SXLV Only)
CLK2
SMI
RESET
φ
2
φ
2
SMM in progress
CPU drives SMI
High for two CLK2 cycles 6–8
clocks after RESET is asserted.
16306B–010
Figure 14. RESET and SMI (Am386SXLV Only)
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