參數(shù)資料
型號： UPSD3254B-40U1
廠商： 意法半導(dǎo)體
元件分類： 8位微控制器
英文描述： 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述： 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存
文件頁數(shù)： 82/176頁
文件大?。?/td> 1214K
代理商： UPSD3254B-40U1
μPSD325X DEVICES
82/176
Master receiver mode flow.
1. Read SxSTA.
2. If BBUSY == 1 then
go to step1.
Else then
write slave address to SxDAT and set both
ENI1 and STA, reset AA in SxCON.
3. Wait for interrupt.
4. Read SxSTA.
If BLOST == 1 or /ACK_REP == 1 then
write dummy data to SxDAT
Go to step1.
Else then
clear STA and write FFH to SxDAT.
Set AA in SxCON.
5. Wait for interrupt.
6. Read SxSTA.
If this datum == LAST then
reset AA* and read SxDAT**.
Go to step7.
Else then
read SxDAT**.
Go to step5.
7. Wait for interrupt.
Read SxSTA.
Read SxDAT**.
Note: 1. (*) If the master want to terminate the current data re-
quests, it don’t have to acknowledge to the slave.
2. (**) This action should be the last.
Slave transmitter mode.
1. Write slave address to SxADR, set AA and ENI
in SxCON.
2. Wait for interrupt.
3. Read SxSTA and write FFH to SxDAT*.
4.
5. Wait for interrupt.
6. Read SxSTA.
If STOP == 1 then
Go to step7.
Else then
read data from SxDAT*.
Go to step5.
7. Read dummy data from SxDAT*.
Note: 1. (*) This action should be the last.
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