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M32C/86 数据表(PDF) 226 Page - Renesas Technology Corp

部件名 M32C/86
功能描述  RENESAS 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES
PDF  505 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

M32C/86 数据表(HTML) 226 Page - Renesas Technology Corp

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Page 203
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17. Serial I/O (UART)
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D0
Start bit
Verify if an "L"
signal is applied
Capture a received data
UiBRG register
setting output
RE bit in UiC1
register
RxDi
Transfer Clock
RI bit in UiC1
register
RTSi
Stop bit
"1"
"0"
"0"
"1"
"H"
"L"
IR bit in SiRIC
register
"0"
"1"
Data is transferred from the UARTi receive
register to the UiRB register
Start receiving when the transfer clock is
generated on the falling edge of the start bit
D7
D1
Set to "0" by an interrupt request acknowledgement or by program
Change to "L" by reading the UiRB register
8-bit Data Receive Timing (with no parity and 1 stop bit)
i=0 to 4
NOTES:
1. The above applies when the PRYE bit in the UiMR register is set to "0" (parity disabled),
the STPS bit in the UiMR register is set to "0" (1 stop bit) and the CRS bit in the UiC0 register is set
to "1" (RTS function selected).
Figure 17.15 Receive Operation
17.2.1 Bit Rate
In UART mode, bit rate is clock frequency which is divided by a setting value of the UiBRG (i=0 to 4)
register and again divided by 16. Table 17.11 lists an example of bit rate setting.
Table 17.11 Bit Rate
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