 |
数据搜索系统，热门电子元器件搜索 |
|
|
数据搜索系统，热门电子元器件搜索 |
|
MCP4341T502E/ST 数据表(PDF) 41 Page - Microchip Technology |
|
|
|||||||||||||||||||||||||||||
MCP4341T502E/ST 数据表(HTML) 41 Page - Microchip Technology |
|
|
41 / 80 page  © 2009 Microchip Technology Inc. DS22233A-page 41 MCP434X/436X 5.4 Shutdown Shutdown is used to minimize the device’s current consumption. The MCP43XX has one method to achieve this. This is: • Terminal Control Register (TCON) This is different from the MCP42XXX devices in that the Hardware Shutdown Pin (SHDN) has been replaced by a RESET pin. The Hardware Shutdown Pin function is still available via software commands to the TCON register. 5.4.1 TERMINAL CONTROL REGISTER (TCON) The Terminal Control (TCON) register is a volatile register used to configure the connection of each resistor network terminal pin (A, B, and W) to the Resistor Network. These registers are shown in Register 4-2 and Register 4-3. The RxHW bits forces the selected resistor network into the same state as the MCP42X1’s SHDN pin. Alternate low power configurations may be achieved with the RxA, RxW, and RxB bits. When the RxHW bit is “0”: • The P0A, P1A, P2A, and P3A terminals are disconnected • The P0W, P1W, P2W, and P3W terminals are simultaneously connect to the P0B, P1B, P2B, and P3B terminals, respectively (see Figure 5-2) The RxHW bit does NOT corrupt the values in the Volatile Wiper Registers nor the TCON register. When the Shutdown mode is exited (RxHW bit = “1”): • The device returns to the Wiper setting specified by the Volatile Wiper value • The TCON register bits return to controlling the terminal connection state FIGURE 5-2: Resistor Network Shutdown State (RxHW = ‘0’). Note: When the RxHW bit forces the resistor network into the hardware SHDN state, the state of the TCON0 or TCON1 register’s RxA, RxW, and RxB bits is overridden (ignored). When the state of the RxHW bit no longer forces the resistor network into the hardware SHDN state, the TCON0 or TCON1 register’s RxA, RxW, and RxB bits return to controlling the terminal connection state. In other words, the RxHW bit does not corrupt the state of the RxA, RxW, and RxB bits. A B W |
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
