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SPD6722QCCE 参数 Datasheet PDF下载

SPD6722QCCE图片预览
型号: SPD6722QCCE
PDF下载: 下载PDF文件 查看货源
内容描述: ISA到PC卡( PCMCIA )控制器 [ISA-to-PC-Card (PCMCIA) Controllers]
分类和应用: 总线控制器微控制器和处理器PC
文件页数/大小: 138 页 / 837 K
品牌: INTEL [ INTEL ]
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PD6710/22 ISA-to-PC-Card (PCMCIA) Controllers  
out  
mov  
mov  
out  
dx, ax  
al, Index_Reg  
ah, user_data ;Desired data to be  
dx, ax  
;written to  
;extended index 03h  
;Read from Extension Control 1 register example  
;Code section  
mov  
mov  
mov  
out  
mov  
out  
inc  
in  
dx, PD67XX_Index  
al, Extended_Index  
ah, Ext_Cntrl_1  
dx, ax  
al, Index_Reg  
dx, al  
dx  
al, dx  
;al has extended  
;index 03h data  
4.3  
Power-On Setup  
Following reset, the PD67XX must be configured by host software. The host softwares setup  
procedure is different depending on its PC system configuration, in particular, the power supply  
arrangement.  
The application of the RESET signal (see Table 2 on page 20) on power-up causes initialization of  
all the PD67XX register bits and fields to their reset values. Not all registers have reset values; only  
registers with bits and fields specified to have reset values are initialized.  
One bit, which is loaded on hardware reset from the SPKR_OUT*/C_SEL pin (see Table 1 on  
page 16), is used to determine the socket to which the PD67XX will respond.  
38  
Datasheet  
 
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