參數資料
型號: PSD211RM
廠商: 意法半導體
英文描述: Low Cost Field Programmable Microcontroller Peripherals
中文描述: 低成本現場可編程微控制器外圍設備
文件頁數: 41/51頁
文件大?。?/td> 348K
代理商: PSD211RM
PSD211R Famly
38
Figure 21. Chip-select Output Timng
30
21
31
A19/CSI
as CSI
Direct PAD
(1)
Input
Multiplexed
(2)
PAD Inputs
CSOi
(3, 4)
ALE
or ALE
22
1
2
3
INPUT STABLE
1. Direct PAD input = any of the following direct PAD input lines: CSI/A19 as transparent A19,
RD/E, WR or R/W, transparent PC0–PC2, ALE in non-multiplexed modes.
2. Multiplexed inputs: any of the following inputs that are latched by the ALE (or AS):
A0/AD0–A15/AD15, CSI/A19 as ALE dependent A19, ALE dependent PC0–PC2.
3. CSOi = any of the chip-select output signals coming through Port B (CS0–CS7) or through
Port C (CS8–CS10).
4. CSOi product terms can include any of the PAD input signals shown in Figure 4, except for reset
and CSI.
Notes for
Timng
Dagrams
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