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| 型號(hào)： | 21825 |
| 英文描述： | 3.3V Spread-Spectrum EconOscillator |
| 中文描述： | 內(nèi)存管理使用16位ROMCS設(shè)計(jì)呢？lanSC300和？lanSC310微控制器 |
| 文件頁(yè)數(shù)： | 3/4頁(yè) |
| 文件大?。?/td> | 64K |
| 代理商： | 21825 |
Using 16-Bit ROMCS
Designs in élan
TM
SC300 and élanSC310 Microcontrollers
3
PGP PINS AS ADDRESS DECODES AND IOCS16 TIMING
The general-purpose programmable PGP0 and PGP1
pins can be programmed as inputs or outputs using
index register 70h bit 6 for PGP0 and index register 74h
bit 2 for PGP1. PGP2 and PGP3 are output only.
The PGP3–PGP0 pins can be individually programmed
as decoder outputs or chip selects for external
peripherals using bits 6–0 of index registers 94h for
PGP2, 95h for PGP3, 9Ch for PGP1, and 89h for
PGP0. In address decode mode, bits 6–0 of these
registers correspond to the SA address bits SA9–SA3,
which provide address decodes from 0h–3F8h in
8-byte increments. To use the PGP3–PGP0 pins to
drive IOCS16, they must first be configured as address
decode only in index register 91h, and then they will
meet the timing in Figure 1 below.
Figure 1 shows the simulation result for timing
requirements for PGPx and IOCS16. For detailed
timing between other signals, refer to ISA I/O 16-bit
read/write cycle timing diagrams in the élan
TM
SC300
Microcontroller Data Sheet
, order #18514.
Figure 1.
PGP Pins as Address Decodes Versus IOCS16 Input Timing Requirements
REFERENCE MATERIAL
I
élan
TM
SC300 Microcontroller Data Sheet
,
order #18514
I
élan
TM
SC310 Microcontroller Data Sheet
,
order #20668
I
élan
TM
SC300 Programmer’s Reference Manual
,
order #18470
I
élan
TM
SC310 Programmer’s Reference Manual,
order #20665
I
élan
TM
SC300 and élan
TM
SC310 Devices’ ISA Bus
Anomalies Application Note
, order #20747
SA15–SA0
PGPx
IOCS16
t1
t2
t3
Notes:
1. t1: SA stable to PGP falling edge 10 ns (maximum) when programmed as address decode only (index 91h)
2. t2: SA stable to PGP rising edge 10 ns (maximum) when programmed as address decode only (index 91h)
3. t3: SA stable to IOCS16 active 95 ns (maximum)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 218250 | 制造商:LITTELFUSE 制造商全稱:Littelfuse 功能描述:5 x 20 mm Time Lag Fuse (Slo-Blo) Fuse |
| 2-1825002-0 | 制造商:TE Connectivity 功能描述:ADF12T04=DIP SWT,FLUSH,THRU/HL - Bulk 制造商:TE CONNECTIVITY ALCOSWITCH 功能描述:Switch DIP OFF ON SPST 12 Flush Slide 0.1A 24VDC PC Pins 2.54mm Thru-Hole Tube |
| 2-1825006-0 | 功能描述:DIP 開關(guān)/ SIP 開關(guān) GDS10STR04=DIP SW,SLIDE,SMT,TR RoHS:否 制造商:Omron Electronics 位置數(shù)量:10 開關(guān)類型:DIP 執(zhí)行器:Rotary 端子節(jié)距:2.54 mm 觸點(diǎn)形式: 端接類型:Solder Pin 電流額定值:100 mA 電壓額定值 DC: 工作溫度范圍: 安裝:Through Hole |
| 2-1825007-0 | 功能描述:DIP 開關(guān)/ SIP 開關(guān) DRD16SETR04=ROT DIP,16P,SMT RoHS:否 制造商:Omron Electronics 位置數(shù)量:10 開關(guān)類型:DIP 執(zhí)行器:Rotary 端子節(jié)距:2.54 mm 觸點(diǎn)形式: 端接類型:Solder Pin 電流額定值:100 mA 電壓額定值 DC: 工作溫度范圍: 安裝:Through Hole |
| 2-1825010-0 | 功能描述:滑動(dòng)開關(guān) 4PDT AUTO-INSERTABLE SLIDE SWITCH RoHS:否 制造商:C&K Components 觸點(diǎn)形式:SPDT 開關(guān)功能:Momentary 觸點(diǎn)額定值: 端接類型: 執(zhí)行器:Extended, Side 安裝風(fēng)格:SMD/SMT 觸點(diǎn)電鍍:Silver 封裝: |
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