參數(shù)資料
型號: ELANSC410-100AI
廠商: Advanced Micro Devices, Inc.
英文描述: Single-Chip, Low-Power, PC/AT-Compatible Microcontrollers
中文描述: 單芯片,低功耗的PC / AT兼容微控制器
文件頁數(shù): 93/132頁
文件大?。?/td> 2400K
代理商: ELANSC410-100AI
élanSC400 and élanSC410 Microcontrollers Data Sheet
93
Table 36.
ROM/Flash Memory Cycles
Symbol
Parameter Description
Notes
33-MHz
External Bus
Min
Unit
Max
6
6
t1
t2a
t2b
SA3–SA0 delay from SA31–SA4
SA stable to ROMCSx assertion
SA stable to ROMCSx assertion
when qualified with command (ROMRD or ROMWR)
SA stable to ROMCSx assertion
when qualified with command (ROMRD or ROMWR)
ROMCSx deassertion to SA change
SD setup to ROMRD or ROMCSx deassertion or burst address
switching, whichever is first, for 8-/16-/32-bit device
ROMWR setup to ROMCSx
Data hold from SA, ROMRD, or ROMCSx change, whichever is first
ROMCSx pulse width
DBUFOE, R32BFOE setup to ROMRD, ROMWR Low
ROMRD pulse width
SA3–SA0 burst address valid duration
ROMWR pulse width
SD setup to ROMWR assertion for 32-bit device
SD hold from ROMWR deassertion
SA hold from ROMWR deassertion
ROMRD delay from SA stable
ROMRD, ROMWR pulse width for 8-bit device
ROMRD, ROMWR pulse width for 16-bit device
Data setup from ROMRD for 8-bit device
Data setup from ROMRD for 16-bit device
ROMRD deassertion to SA unstable
Data hold from ROMRD deassertion
SA hold from ROMWR deassertion
SD setup to ROMWR assertion for 16-bit device
SD setup to ROMWR assertion for 8-bit device
SD hold from ROMWR deassertion
IOCHRDY assertion to ROMRD, ROMWR deassertion
IOCHRDY deassertion from ROMRD, ROMWR for 8-bit
IOCHRDY deassertion from ROMRD, ROMWR for 16-bit
R32BFOE/DBUFOE hold from ROMRD High
R32BFOE/DBUFOE hold from ROMWR High
DBUFRDL, DBUFRDH setup to ROMRD, ROMWR Low
DBUFRDL, DBUFRDH hold from ROMRD High
DBUFRDL, DBUFRDH hold from ROMWR high
ns
ns
ns
1
1
20
t2c
1
100
ns
t3
t4
1
53
15
ns
ns
2
t5
t6
t7
t8
t9
t10
t11
t12
t13
t14
t15
t16a
t16b
t17a
t17b
t18
t19
t20
t21a
t21b
t22
t23
t24a
t24b
t25
t26
t27
t28
t29
0
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
2
3
25
-8
3
25
25
25
3
3
2
17
2
20
20
115
530
240
2
2, 4
489
209
2, 4
20
0
53
-29
33
26
125
2
2
2
2
378
66
0
26
-8
0
26
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