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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  
Table 8. PD67XX Power-Management Modes  
Misc Control 2 Register  
Typical Power  
Consumption  
(CORE_VDD =  
3.3 V,  
ISA_VCC,  
SOCKET_VCC, and  
+5V = 5.0 V)  
PWRGOOD  
Level  
Low-Power  
Dynamic  
Mode  
Mode Name  
AEN  
Functionality  
Suspend  
Mode  
(Bit 2)  
(Bit 1)  
Low-Power  
Dynamic  
(Default)  
< 45 mW high activity,  
914 mW normal  
system activity  
High  
High  
Normal  
Normal  
0
0
1
0
Full functionality  
Full functionality  
< 85 mW high activity,  
18 mW normal  
Normal  
system activity  
8-bit access to Misc  
Control 2 register.  
No other register  
access. No card in  
socket(s).  
Suspend  
High  
Normal  
1
< 2 mW  
(Software  
Controlled)  
No register access.  
No card in socket(s).  
System bus signals  
disabled (clock off).  
Super-Suspend  
Static  
High  
High  
1
< 1 mW  
(Hardware  
Controlled)  
No register access.  
No card in socket(s).  
System bus signals  
disabled.  
Reset  
Low1  
914 mW  
1. IOR*, IOW*, MEMR*, and MEMW* must be held high when PWRGOOD is low to prevent manufacturing test mode outputs  
from driving the system data bus  
4.1.9  
Socket Power Management Features  
Card Removal  
When a card is removed from a socket, the PD67XX by default automatically disables the VCC and  
VPP supplies to the socket. If Extension Control 1 register bit 1 is 0, card power is prevented  
from being automatically disabled when a card is removed. The PD67XX can also be configured to  
have management interrupts notify software of card removal.  
Card Insertion  
Power to the socket is off at reset and whenever there is no card in a socket. When a card is  
detected (card detect input pins, -CD1 and -CD2, to the PD67XX become asserted low), two  
independent actions can be programmed to occur.  
If the PD67XX has been set for automatic power-on (Power Control register bits 4 and 5 are both  
1), the PD67XX automatically enables the socket VCC supply (and, if so programmed, the VPP  
supply).  
If the PD67XX has been programmed to cause management interrupts for card-detection events,  
assertion of -CD1 and -CD2 to the PD67XX causes a management interrupt to inform system  
software that a card was inserted. In the case of manual power detection (Power Control register  
34  
Datasheet  
 
 
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