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參數(shù)資料
| 型號(hào)： | X88257JM |
| 英文描述： | E2 Micro-Peripheral |
| 中文描述： | E2微型外設(shè) |
| 文件頁(yè)數(shù)： | 5/15頁(yè) |
| 文件大?。?/td> | 70K |
| 代理商： | X88257JM |
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X88257
5
TOGGLE BIT POLLING
Because the typical write timing is less than the specified
5ms, Toggle Bit Polling has been provided to determine
the early end of write. During the internal programming
cycle I/O
6
will toggle from “1” to “0” and “0” to “1” on
subsequent attempts to read the device. When the
internal cycle is complete the toggling will cease and the
device will be accessible for additional read or write
operations.
Toggle Bit Polling
RD
/
WR
Control
RD
LAST BYTE
WRITTEN
CE
ALE
A/D0–A/D7
A8–A14
WR
AIN
DIN
An
OPERATION
AIN
DOUT
An
AIN DOUT
An
AIN
DOUT
An
AIN
DOUT
An
AIN
ADDR
I/O6=X
X88C64 READY FOR
NEXT OPERATION
6509 ILL F09.1
I/O6=X
I/O6=X
I/O6=X
Writing with SDP
WRITE AA
TO 5555
WRITE 55
TO 2AAA
WRITE A0
TO 5555
PERFORM BYTE
OR PAGE WRITE
OPERATIONS
WAIT tWC
EXIT ROUTINE
6509 ILL F10.1
SOFTWARE DATA PROTECTION
Software Data Protection (SDP) is employed to protect
the entire array against inadvertent writes. To write to the
X88257, a three-byte command sequence must precede
the byte(s) being written. All write operations, both the
command sequence and any data write operations must
conform to the page write timing requirements.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| X88257P | E2 Micro-Peripheral |
| X88257PI | E2 Micro-Peripheral |
| X88257PM | E2 Micro-Peripheral |
| X88257S | E2 Micro-Peripheral |
| X88257SI | E2 Micro-Peripheral |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X88257P | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:E2 Micro-Peripheral |
| X88257PI | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:E2 Micro-Peripheral |
| X88257PM | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:E2 Micro-Peripheral |
| X88257S | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:E2 Micro-Peripheral |
| X88257SI | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:E2 Micro-Peripheral |
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