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PIC16F1615-E/SL 其他数据使用手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
微控制器
封装:
SOIC-14
描述:
PIC 32MHz 闪存：8K@x14bit
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3D模型
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PIC16F1615-E/SL数据手册
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若手册格式错乱，请下载阅览PDF原文件
PIC16(L)F1615/1619
DS80000629A-page 6 2014 Microchip Technology Inc.
9. Module: Enhanced Universal
Synchronous Asynchronous
Receiver Transmitter (EUSART):
Section 25.4.2 should read as follows:
During the course of automatic baud detection,
the ABDOVF bit of the BAUDxCON register will
be set if the baud rate counter overflows before
the fifth rising edge is detected on the RX pin.
The ABDOVF bit indicates that the counter has
exceeded the maximum count that can fit in the
16 bits of the SPxBRGH:SPxBRGL register pair.
The overflow condition will set the RCIF flag.
The counter continues to count until the fifth ris-
ing edge is detected on the RX pin. The RCIDL
bit will remain false (‘0’) until the fifth rising
edge at which time the RCIDL bit will be set.
If the RCREG is read after the overflow
occurs but before the fifth rising edge then
the fifth rising edge will set the RCIF again.
Terminating the auto-baud process early to
clear an overflow condition will prevent
proper detection of the sync character fifth
rising edge. If any falling edges of the sync
character have not yet occurred when the
ABDEN bit is cleared then those will be
falsely detected as Start bits. The following
steps are recommended to clear the over-
flow condition:
1. Read RCREG to clear RCIF.
2. If RCIDL is zero then wait for RCIF and
repeat step 1.
3. Clear the ABDOVF bit
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