參數(shù)資料
型號: ELANSC300-25KI
廠商: ADVANCED MICRO DEVICES INC
元件分類: 微控制器/微處理器
英文描述: Highly Integrated, Low-Power, 32-Bit Microcontroller
中文描述: 32-BIT, 25 MHz, MICROCONTROLLER, PQFP208
封裝: SHRINK, PLASTIC, QFP-208
文件頁數(shù): 122/139頁
文件大小: 1388K
代理商: ELANSC300-25KI
122
élanSC300 Microcontroller Data Sheet
P R E L I M I N A R Y
Notes:
1. This is the timing when DOSCS is qualified with MEMR or MEMW, (Bit 4 of ROM Configuration 3 Register, Index B8h, = 0).
2. This is the timing when DOSCS is configured as an address decode, (Bit 4 of ROM Configuration 3 Register, Index B8h, = 1).
These timings are based on default settings with bit 2 in Index 50h set to 0 and bits 0 and 1 in Index 62h equal to 0 for 5 wait
states, and required initial programming. These timings may be modified via the MMS Memory Wait State 1 Register, Index 62h,
the Command Delay Register, Index 60h, and the MMS Memory Wait State 2 Register Index 50h. (See the
élan
TM
SC300 Micro-
controller Programmer’s Reference Manual
, order #18470.)
Table 65.
DOS ROM Read/Write 8-Bit Cycle (See Figure 48)
Symbol
Parameter Description
Notes
Preliminary
Units
Min
Max
t1a
t1b
t2a
t2b
t3a
t3b
t4a
t4b
t5a
t5b
t6
t7
t8
t9
t10
t11a
t11b
t12
t13
t14
t15
SA stable to DOSCS active
SA stable to DOSCS active
SA hold from DOSCS inactive (write)
SA hold from DOSCS inactive (read)
DOSCS pulse width (read)
DOSCS pulse width (write)
MEMW active to DOSCS active
MEMR active to DOSCS active
DOSCS hold from MEMW inactive
DOSCS hold from MEMR inactive
RDDATA setup to command inactive
RDDATA hold from command inactive
WRDATA setup to command inactive
WRDATA hold from command inactive
DBUFOE active from command
DBUFOE hold from MEMW
DBUFOE hold from MEMR
ENDIRH, ENDIRL setup to MEMR
ENDIRH, ENDIRL hold from MEMR
DOSCS active to command active
DOSCS hold from SA
1
2
1
1
1
1
1
1
1
1
160
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
5
50
0
550
500
4
4
0
0
40
0
90
50
5
50
–2
50
–3
170
5
2
2
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