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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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ISA-to-PC-Card (PCMCIA) Controllers PD6710/22  
Figure 24. Word I/O Read/Write Timing  
-REG,  
A[25:0]  
t
t
1
3
t
2
-IOWR, -IORD  
t
t
5
4
-WAIT  
t
ref  
t
6
-IOIS16  
-CE1  
t
7
-CE2  
D[15:0]  
Write Cycle  
t
t
8
10  
t
9
D[15:0]  
Read Cycle  
Table 33. PC Card Read/Write Timing when System Is 8-Bit  
Symbol  
Parameter  
MIN  
MAX  
Units  
t
t
t
t
t
-REG or Address setup to Command active1  
Command pulse width2  
(S × Tcp) 10  
(C × Tcp) 10  
(R × Tcp) 10  
(2 Tcp) + 10  
0
ns  
ns  
ns  
ns  
ns  
1
2
3
4
5
Address hold from Command inactive3  
Data setup before Command inactive  
Data hold after command inactive  
1. The Setup time is determined by the value programmed into the Setup Timing register, index 3Ah/3Dh. Using the Timer Set  
0 default value of 01h, the setup time would be 70 ns. S = (N  
page 109.  
× N + 1), see PC Card Bus Timing Calculationson  
pres  
val  
2. The Command time is determined by the value programmed into the Command Timing register, index 3Bh/3Eh. Using the  
Timer Set 0 default value of 06h, the Command time would be 270 ns. C = (N × N + 1), see page 109.  
pres  
val  
3. The Recovery time is determined by the value programmed into the Recovery Timing register, index 3Ch/3Fh. Using the  
Timer Set 0 default value of 03h, the hold (Recovery) time would be 150 ns. R = (N × N + 1), see page 109.  
pres  
val  
Datasheet  
113  
 
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