參數(shù)資料
型號： MSX532-TB792
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 數(shù)字信號處理外設(shè)
英文描述： DSP-CROSSBAR SWITCH, PBGA792
封裝： TBGA-792
文件頁數(shù)： 6/61頁
文件大?。?/td> 726K
代理商： MSX532-TB792
MSX Family Datasheet
14
[Rev. 1.10] 3/21/02
Fairchild Semiconductor
1.4.2.2
Crosspoint Read Commands
A crosspoint read is used to check whether two ports are connected through the crosspoint array.
The two ports are addressed using RCA[9:0] and RCB[9:0].
The MSX device uses RCC[0] to show whether the two ports are connected. It drives RCC[0]
high if the two ports are connected, and pulls RCC[0] low if the two ports are not connected.
1.4.2.3
IOB Read Commands
I/O Buffer reads are more complicated (see Table 5: I/O Buffer read Commands). The port to be
read is addressed using RCA[9:0]. The MSX device uses RCA[9:0] and RCB[9:0] to return all of
the configuration data for the particular IOB.
Table 5
I/O Buffer Read Commands
Signal
Description
RCA[0]
RCA[0] is set to one if the IOB is an input. It is zero if the IOB is not configured as an input. Note that an IOB
can be configured as an Input, Output, Input and Output (in bi-directional mode), or No Connect. All IOBs
default to inputs at power-on reset or following a global IOB Reset command, so RCA[0] will read as a one at
reset.
RCA[1]
RCA[1] is set to a one if the IOB is an output. It is zero if the IOB is not configured as an output. If RCA[1:0]
equal 00 the IOB is configured as a No Connect. A No Connect means that the I/O pin of the MSX device is
not connected to the crosspoint array. RCA[1] will read as a zero at reset.
RCA[2]
RCA[2] is set to a one if the IOB is configured in Bus Repeater Mode. It is zero if the IOB is not in Bus
Repeater Mode.
Bus Repeater Mode will be disabled by default at reset, so RCA[2] will read as a zero.
RCA[3]
RCA[3] is set to a one if the IOB is configured as a registered input and is assigned to use its Input Clock 1. It
is zero if the IOB is not using Input Clock 1. Input Clock 1 for each IOB will vary depending upon the quadrant
of the device in which it resides. RCA[3] will read as a zero at reset.
RCA[4]
RCA[4] is set to a one if the IOB is configured as a registered input and is assigned to use its Input Clock 2. It
is zero if the IOB is not using Input Clock 2. As with Input Clock 1, the source changes depending upon the
quadrant of the device in which the IOB resides. RCA[4] will read as a zero at reset.
RCA[5]
RCA[5] is set to a one if the IOB is configured as a registered input and assigned to use Next Neighbor
Clocking. It is zero if Next Neighbor Clocking is disabled. Next Neighbor Clocking allows the IOB to be
registered using the next higher numbered Port number signal as its input clock source. Port 100 on the MSX
devices can use the signal from Port 101 for its input clock if this mode is enabled. Port 531’s Next Neighbor
is Port 0. Next Neighbor Clocking will be disabled by default at reset, so RCA[5] will read as a zero.
1
0
RCI[1:0]
RCC[3:0]
RCB[9:0]
RCA[9:0]
Cross Point Read
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
0
1
Read Command
Read/Reset Cmd
0
Port #1
Port #2
1
0
RCI[1:0]
RCC[3:0]
RCB[9:0]
RCA[9:0]
I/O Buffer Config Read
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
0
1
Read Command
Read/Reset Command
0
I/O Buffer Address
0
相關(guān)PDF資料
PDF描述
MTA41111/SS SPECIALTY MICROPROCESSOR CIRCUIT, PDSO20
MTA41111-I/P SPECIALTY MICROPROCESSOR CIRCUIT, PDIP18
MTA41111-I/SS SPECIALTY MICROPROCESSOR CIRCUIT, PDSO20
MTA41111/SO SPECIALTY MICROPROCESSOR CIRCUIT, PDSO18
MTA41111/P SPECIALTY MICROPROCESSOR CIRCUIT, PDIP18
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MSX5542 制造商:Cinch Connectors 功能描述:
MSX60 制造商:未知廠家 制造商全稱:未知廠家 功能描述:60-Watt Multicrystalline Photovoltaic Module
MSX6-540 制造商:Cinch Connectors 功能描述:
MSXLHDE7212Y 制造商:Banner Engineering 功能描述:MSXLHDE7212Y 72in E HEAVY DUTY MS LONG RANGE
MSX-M256A 制造商:Sony 功能描述:
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*