參數(shù)資料
型號: PSD211R
英文描述: Field Programmable Microcontroller Peripherals(可編程邏輯,可加密,19個可單獨配置I/O,通用PLD有12個輸入)
中文描述: 現(xiàn)場可編程微控制器外圍設(shè)備(可編程邏輯,可加密,19個可單獨配置的I / O,通用PLD的有12個輸入)
文件頁數(shù): 18/32頁
文件大小: 175K
代理商: PSD211R
PSD211R
2-18
RESET
This is an asynchronous input pin that clears and initializes the PSD211R. Reset polarity is
programmable (active low or active high). Whenever the PSD211R reset input is driven
active for at least 100 ns, the chip is reset. The PSD211R must be reset at power up before
it can be used. Tables 7 and 8 indicate the state of the part during and after reset.
Table 8. Internal States During and After Reset Cycle
Signal
Configuration Mode
Condition
AD0/A0–AD7/A7
All
Input
A8–A15
All
Input
PA0–PA7)
(Port A)
I/O
Address outputs A0–A7
Input
Low
PB0–PB7
(Port B)
I/O
CS7–CS0 CMOS outputs
Input
High
PC0–PC2
(Port C)
Address inputs A16–A18
CS8–CS10 CMOS outputs
Input
High
Table 7. Signal States During Reset Active (RESET)
NOTE:
9. All PAD outputs are in a non-active state.
Component
Signals
Contents
CS0–CS10
All = 1 (Note 9)
PAD
CSIOPORT, ES0–ES7
All = 0 (Note 9)
Data register A
Direction register A
Data register B
Direction register B
n/a
n/a
n/a
n/a
0
0
0
0
Control Signals
(cont.)
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