Electronic Components Datasheet Search |
|
DS2480B Datasheet(PDF) 6 Page - Maxim Integrated Products |
|
DS2480B Datasheet(HTML) 6 Page - Maxim Integrated Products |
6 / 32 page DS2480B In addition to the command codes explained in the subsequent sections the DS2480B understands the following reserved command codes: E1h switch to Data Mode E3h switch to Command Mode F1h pulse termination Except for these reserved commands, the Search Accelerator control and the first byte after power-on reset or master reset cycle, every legal command byte generates a response byte. The pulse termination code triggers the response byte of the terminated pulse command. Illegal command bytes do not generate a command response byte. COMMUNICATION COMMANDS The DS2480B supports four communication function commands: Reset, Single Bit, Pulse, and Search Accelerator control. Details on the assignment of each bit of the command codes are shown in Table 1. The corresponding command response bytes are detailed in Table 2. The Reset, Search Accelerator Control and Single Bit commands include bits to select the 1-Wire communication speed (standard, flexible, Overdrive). Even if a command does not generate activity on the 1-Wire bus, these bits are latched inside the device and will take effect immediately. Reset The Reset command must be used to begin all 1-Wire communication. The speed selection included in the command code immediately takes effect. The response byte includes a code for the reaction on the 1-Wire bus (bits 0 and 1) and a code for the chip revision (bits 2 to 4). Single Bit The Single Bit command is used to generate a single time slot on the 1-Wire bus at the speed indicated by bits 2 and 3. The type of the time slot (Write-0 or Write-1) is determined by the logic value of bit 4. A Read Data time slot is identical to the Write-1 time slot. Bits 0 and 1 of the response byte transmitted by the DS2480B at the end of the time slot reveal the value found on the 1-Wire bus when reading. For a time slot without a subsequent strong pullup, bit 1 of the command must be set to 0. For a time slot immediately followed by a strong pullup bit 1 must be set to 1. As soon as the strong pullup is over, the device will send a second response byte, code EFh (read 1) or ECh (read 0), depending on the value found on the 1-Wire bus when reading. Maxim Integrated ............................................................................................................................................................................................. 6 |
Similar Part No. - DS2480B_15 |
|
Similar Description - DS2480B_15 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List 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 |