參數(shù)資料
型號: ELANSC300-33VI
廠商: Advanced Micro Devices, Inc.
元件分類: 32位微控制器
英文描述: Highly Integrated, Low-Power, 32-Bit Microcontroller
中文描述: 高度集成,低功耗,32位微控制器
文件頁數(shù): 128/139頁
文件大?。?/td> 1388K
代理商: ELANSC300-33VI
128
élanSC300 Microcontroller Data Sheet
P R E L I M I N A R Y
Notes:
These timings are based on default settings and required initial programming. These timings may be modified via the MMS
Memory Wait State 1 Register, Index 62h, and the Command Delay Register, Index 60h. (See the
élan
TM
SC300 Microcontroller
Programmer’s Reference Manual
, order #18470.)
Table 68.
ISA Memory Read/Write 16-Bit Cycle (See Figure 51)
Symbol
Parameter Description
Notes
Preliminary
Units
Min
Max
t1
LA stable to BALE inactive
60
ns
t2
SA stable to command active
70
ns
t3
BALE pulse width
35
ns
t4
LA hold from BALE inactive
40
ns
t5a
SA hold from command inactive write
50
ns
t5b
SA hold from command inactive read
0
ns
t6
BALE inactive to command active
30
ns
t7a
LA stable to MCS16 valid
35
ns
t7b
MCS16 hold from LA change
0
ns
t8a
MEMW command pulse width
500
ns
t8b
MEMR command pulse width
550
ns
t9a
MEMW active to IOCHRDY inactive
340
ns
t9b
MEMR active to IOCHRDY inactive
340
ns
t10a
MEMW hold from IOCHRDY active
110
ns
t10b
MEMR hold from IOCHRDY active
160
ns
t11
RDDATA setup to command inactive
25
ns
t12
RDDATA hold from command inactive
0
ns
t13
WRDATA setup to command inactive
330
ns
t14
WRDATA hold from command inactive
50
ns
t15
DBUFOE active from command
5
ns
t16a
DBUFOE hold from command write
50
ns
t16b
DBUFOE hold from command read
–2
ns
t17
ENDIRH, ENDIRL setup to MEMR
50
ns
t18
ENDIRH, ENDIRL hold from MEMR
–4
ns
t19
SA (23:13) stable to MCS16 valid
25
ns
t20
LA stable to SA stable
15
ns
t21
SA stable to BALE inactive
45
ns
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