參數(shù)資料
型號: ELANSC410
英文描述: Single Synchronous Buck Pulse-Width Modulation (PWM) Controller; Temperature Range: 0&degC to 70°C; Package: 16-QFN
中文描述: ElanSC410 - ElanSC410框圖
文件頁數(shù): 5/119頁
文件大?。?/td> 1167K
代理商: ELANSC410
102
lanSC310 Microcontroller Data Sheet
PREL IMINARY
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 wait state settings, set for 5 wait states with bit 2 in Index 50h and Bits 0 and 1 in Index 62h
equal to 0, 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 lanTMSC310
Microcontroller Programmer’s Reference Manual
, order #20665.)
Table 53.
DOS ROM Read/Write 8 Bit Cycle (See Figure 42)
Symbol
Parameter Description
Notes
Preliminary
Units
Min
Max
t1a
SA stable to DOSCS active
1
160
ns
t1b
SA stable to DOSCS active
2
5
ns
t2a
SA hold from DOSCS inactive (write)
1
50
ns
t2b
SA hold from DOSCS inactive (read)
1
0
ns
t3a
DOSCS pulse width (read)
1
550
ns
t3b
DOSCS pulse width (write)
1
500
ns
t4a
MEMW active to DOSCS active
1
4
ns
t4b
MEMR active to DOSCS active
1
4
ns
t5a
DOSCS hold from MEMW inactive
1
0
ns
t5b
DOSCS hold from MEMR inactive
1
0
ns
t6
RDDATA setup to command inactive
40
ns
t7
RDDATA hold from command inactive
0
ns
t8
WRDATA setup to command inactive
90
ns
t9
WRDATA hold from command inactive
50
ns
t10
DBUFOE active from command
5
ns
t11a
DBUFOE hold from MEMW
50
ns
t11b
DBUFOE hold from MEMR
–2
ns
t12
ENDIRH, ENDIRL setup to MEMR
50
ns
t13
ENDIRH, ENDIRL hold from MEMR
–3
ns
t14
DOSCS active to command active
2
170
ns
t15
DOSCS hold from SA
2
5
ns
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