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参数资料
| 型号： | EM6617SO24A |
| 元件分类： | MOSFETs |
| 英文描述： | 30V N-Channel PowerTrench MOSFET |
| 中文描述： | 30V的N沟道的PowerTrench MOSFET的 |
| 文件页数： | 24/67页 |
| 文件大小： | 824K |
| 代理商： | EM6617SO24A |
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EM6617
03/02 REV. C/442
Copyright
2002, EM Microelectronic-Marin SA
30
www.emmicroelectronic.com
During automatic transmission the general INTEN bit is disabled automatically to prevent other Interrupts to
reset the standby mode. At the end of automatic transmission EM6617 leaves standby mode (INTEN is
automatically Enabled)
and sets TestVar[3] high. TestVar[3] = 1 is signaling SWB transmission is terminated.
As soon as SWBAuto is high, the general IntEn flag is disabled until the SWBAuto goes back low.
After automatic SWB transmission INTEN bit becomes high. Although set to 1 via the Halt instruction the bit
INTEN is disabled throughout the whole SWB automatic transmission. It resumes to 1 at the end of transmission
.
The data to be sent must be prepared in the following order:
First nibble to be sent must be written in the RegSWBuff register . The other nibbles must be loaded in the RAM
from address 00 (second nibble at adr.00, third at adr.01,...) up to the address with last nibble of data to be send
= "size" address. Max. address space for SWB is 3E ("size" 3E hex) what gives together with RegSWBuff up
to 64 nibbles (256 bits) of data to be sent. The minimum amount of data bits one can send in automatic SWB
mode is 8 . In this case the last RAM address to be sent is 00 ("size" = 00).
Once data are written into the RAM and into the RegSWBuff, the user has to load the "size" (adr. of the last
nibble to be send - bits size[5 :0]) into the RegSWBSizeL and RegSWBSizeH register, later register together
with SWBAuto =1 bit.
Now everything is ready for automatic serial transmission. To start the transmission one has to put the EM6617
in standby mode with the HALT instruction. When transmission is finished TESTvar[3] (can be used for
conditional jumps) becomes active High, the bit SWBAuto is cleared , the processor is leaving the Standby
mode and IntEn is switched on.
The processor now starts to execute the first instruction placed after the HALT instruction (for instance write of
RegSWBuff register to clear TESTvar[3]), except if there was a IRQ during the serial transmission. In this case
the CPU will go directly in the interrupt routine.
TestVar[3] stays high until RegSWBuff is rewritten. Before starting a second SWB action this bit must be
cleared by performing a dummy write on RegSWBuff address.
Figure 23. Automatic Serial Write Buffer Transmission
Because the data in the RAM are still present one can start transmitting the same data once again only by
recharging the RegSWBuff , RegSWBSizeL and RegSWBSizeH register together with SWBAuto bit and putting
the EM6617 in HALT mode. This will start a new transmission.
Using the SWB high impedance mask option in automatic mode. As soon as one goes into Halt mode the SWB
outputs go to ‘0’ and SWB transfer starts. At the end of the transfer the SWB outputs go immediately back into
high impedance state.
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PDF描述 |
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| EM6617SO24B | 30V N-Channel PowerTrench MOSFET |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EM6617SO24B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6617SO28A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6617SO28B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6617TP28A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6617TP28B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
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