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參數(shù)資料
| 型號(hào)： | X4045P8-2.7A |
| 元件分類： | CPU監(jiān)測 |
| 英文描述： | RTC Module With CPU Supervisor |
| 中文描述： | 時(shí)鐘模塊CPU監(jiān)控 |
| 文件頁數(shù)： | 6/25頁 |
| 文件大?。?/td> | 144K |
| 代理商： | X4045P8-2.7A |
X4043/45
Characteristics subject to change without notice.
6 of 25
REV 1.1.17 9/14/01
www.xicor.com
Figure 5. V
TRIP
Programming Sequence
V
TRIP
Programming
Power Down
the Device
Actual V
TRIP
–
Desired V
TRIP
= Error
DONE
Set Higher V
TRIP
Sequence
Error < MDE
–
| Error | < | MDE |
YES
NO
Error > MDE
+
Desired
V
TRIP
<
Present Value
Execute
No
YES
Execute
V
TRIP
Reset Sequence
Set V
CC
= desired V
TRIP
New V
CC
applied =
Old V
CC
applied + | Error |
New V
CC
applied =
Old V
CC
applied – | Error |
Execute Reset V
TRIP
Sequence
Output Switches
(RESET)
Let:
MDE = Maximum Desired Error
MDE
+
Desired Value
MDE
–
Acceptable
Error Range
Error = Actual – Desired
Ramp V
CC
Control Register
The control register provides the user a mechanism for
changing the block lock and watchdog timer settings.
The block lock and watchdog timer bits are nonvolatile
and do not change when power is removed.
The control register is accessed with a special pream-
ble in the slave byte (1011) and is located at address
1FFh. It can only be modified by performing a byte
write operation directly to the address of the register
and only one data byte is allowed for each register
write operation. Prior to writing to the control register,
the WEL and RWEL bits must be set using a two step
process, with the whole sequence requiring 3 steps.
See "Writing to the Control Register".
The user must issue a stop after sending this byte to
the register to initiate the nonvolatile cycle that stores
WD1, WD0, BP2, BP1, and BP0. The X4043/45 will not
acknowledge any data bytes written after the first byte
is entered.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| X4045P8-4.5A | RTC Module With CPU Supervisor |
| X4045P8I4.5A | RTC Module With CPU Supervisor |
| X4043S8Z-4.5A | 16 Characters x 1 Lines, 5x7 Dot Matrix Character and Cursor |
| X4043S8IZ-4.5A | 16 Characters x 1 Lines, 5x7 Dot Matrix Character and Cursor |
| X4043M8Z-4.5A | 16 Characters x 1 Lines, 5x7 Dot Matrix Character and Cursor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X4045P8-4.5A | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:CPU Supervisor with 4Kbit EEPROM |
| X4045P8I | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:CPU Supervisor with 4Kbit EEPROM |
| X4045P8I-2.7 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:CPU Supervisor with 4Kbit EEPROM |
| X4045P8I-2.7A | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:CPU Supervisor with 4Kbit EEPROM |
| X4045P8I4.5A | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:CPU Supervisor with 4Kbit EEPROM |
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