參數(shù)資料
型號: ADSP-TS202S
廠商: Analog Devices, Inc.
英文描述: TigerSHARC Embedded Processor
中文描述: TigerSHARC系列嵌入式處理器
文件頁數(shù): 24/40頁
文件大?。?/td> 615K
代理商: ADSP-TS202S
Rev. PrB
|
Page 24 of 40
|
December 2003
ADSP-TS202S
Preliminary Technical Data
Table 20. Power-Up Reset Timing
Parameter
Timing Requirements
t
RST_IN_PWR
Min
Max
Units
RST_IN Deasserted After V
DD
, V
DD_A
, V
DD_IO
, V
DD_DRAM
(ENEDREG=0), SCLK, and
Static/Strap Pins Stable
TRST Asserted During Power-Up Reset
Switching Characteristic
t
RST_OUT_PWR
RST_OUT Deasserted After RST_IN Deasserted
2
ms
t
TRST_IN_PWR1
100×t
SCLK
ns
1.5
ms
1
Applies after V
DD
, V
DD_A
, V
DD_IO
, V
DD_DRAM
(ENEDREG=0), and SCLK are stable and before RST_IN deasserted.
Figure 9. Power-Up Reset Timing
Table 21. Normal Reset Timing
Parameter
Timing Requirements
t
RST_IN
t
STRAP
Switching Characteristic
t
RST_OUT
Min
Max
Units
RST_IN Asserted
RST_IN Deasserted After Strap Pins Stable
2
1.5
ms
ms
RST_OUT Deasserted After RST_IN Deasserted
1.5
ms
Figure 10. Normal Reset Timing
RST_OUT
t
RST_OUT_PWR
TRST
t
TRST_PWR
SCLK, V
DD,
V
DD_A,
V
DD_IO,
V
DD_DRAM
STATIC/STRAP PINS
RST_IN
t
RST_IN_PWR
STRAP PINS
t
STRAP
RST_IN
t
RST_IN
RST_OUT
t
RST_OUT
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