参数资料
型号: MSX340-10PB480
元件分类: 数字信号处理外设
英文描述: DSP-CROSSBAR SWITCH, PBGA480
封装: BGA-480
文件页数: 11/61页
文件大小: 1443K
代理商: MSX340-10PB480
MSX Family Data Sheet
I-Cube, Inc.
[Rev. 1.8] 2/28/01
19
NOTES:
1.
If both IE1 and IE2 are selected, the two are assigned an OR function to form the IE.
Either can be “1” to enable the input.
2.
If both OE1# and OE2# are selected, active low signals are assigned an AND function
to form the resulting OE#. Either can be “0” to enable the output.
Table 7
IOB Programming Bit Functions
Bit
Number
IOB Function
Description
0
Input (IN)
Input Pin data to drive Array
1
Output (OP)
Output Array data to Pin
2
Bus Repeater (BR)
Low Array Signal, Drive Pin Low
Low Pin Signal, Drive Array Low
3
Reg In Clock 1
Selects Reg. In IOB, Clock 1
4
Reg In Clock 2
Selects Reg. In IOB, Clock 2
5
Reg In Clk Neighbor
Selects Reg. In IOB, Neighbor
6
Reg Out Clock 1
Selects Reg. Out IOB, Clock 1
7
Reg Out Clock 2
Selects Reg. Out IOB, Clock 2
8
Reg Out Clk Neighbor
Selects Reg. Out IOB, Neighbor
9
Input Enable 1 (IE1)
Select Input Enable 1 1
10
Input Enable 2 (IE2)
Select Input Enable 2 1
11
Output Enable 1 (OE1)
Select Output Enable 1 2
12
Output Enable 2 (OE2)
Select Output Enable 2 2
13
Force 1
Force IOB output Pin to a 1
14
Force 0
Force IOB output Pin to a 0
15
Array 1
Force IOB Array to a 1
16
Array 0
Force IOB Array to a 0
17
Invert Output
Output data is inverted. This operation is invalid in
Bus Repeater mode and Register Output mode
18
Invert Input Clock
Invert the clock to the input register
19
Invert Output Clock
Invert the clock to the output register
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