參數(shù)資料
型號: NG80386SX-40
廠商: ADVANCED MICRO DEVICES INC
元件分類: 微控制器/微處理器
英文描述: High-Performance, Low-Power, Embedded Microprocessors
中文描述: 32-BIT, 40 MHz, MICROPROCESSOR, PQFP100
封裝: PLASTIC, QFP-100
文件頁數(shù): 22/30頁
文件大小: 401K
代理商: NG80386SX-40
22
Am386SX/SXL/SXLV Microprocessors Data Sheet
F I N A L
CLK2
Reset
CLK (Internal)
BUSY
ADS
NA
D15–D0
BHE, BLE, W/R,
M/IO, HLDA
READY
Low
High
High
During Reset
During Reset
During Reset
Up to 30 CLK2
Up to 30 CLK2
Up to 30 CLK2
Reset
Cycle 1
Non-Pipelined
(Read)
T1
1
2
3
17
18
19
395 396 397 398
2
1
1
2
1
2
1
2
T2
*
Valid 1
Valid 1
(Note 1)
Low to begin self-test (Note 2)
Approximately
No self-test
ERROR
*
16305C–009
2
φ
φ
φ
φ
φ
φ
φ
φ
φ
SMI
Notes:
1. BUSY should be held stable for eight CLK2 periods before and after the CLK2 period in which the RESET falling edge
occurs.
2. If self-test is requested, the Am386SXLV microprocessor outputs remain in their reset state as shown here.
A23–A1,
D/C, LOCK
Figure 11. Bus Activity from Reset Until First Code Fetch (Am386SXLV Only)
15 CLK2 duration if not
going to request self-test.
80 CLK2 duration before
requesting self-test.
If self-test is performed, add
(2
20
) + 60* to these numbers.
Internal Initialization
Negated to allow sensing of a
387DX math coprocessor
Asserted to indicate 387DX
math coprocessor protocol
(Floating)
相關(guān)PDF資料
PDF描述
NG80386SXL-25 High-Performance, Low-Power, Embedded Microprocessors
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