Renesas RL78/G1P Hardware User Manual page 453

RL78/G1P
11.7.1 UART transmission
UART transmission is an operation to transmit data from the RL78/G1P to another device asynchronously (start-stop
synchronization).
Of two channels used for UART, the even channel is used for UART transmission.
UART
Target channel
Pins used
Interrupt
Error detection flag
Transfer data length
Transfer rate
Data phase
Parity bit
Stop bit
Data direction
Note Use this operation within a range that satisfies the conditions above and the peripheral functions characteristics
in the electrical specifications (see CHAPTER 27 ELECTRICAL SPECIFICATIONS).
Remarks 1. f : Operation clock frequency of target channel
MCK
f : System clock frequency
CLK
2. m: Unit number (m = 0), n: Channel number (n = 0), mn = 00
R01UH0895EJ0100 Rev.1.00
Nov 29, 2019
Channel 0 of SAU0
TxD0
INTST0
Transfer end interrupt (in single-transfer mode) or buffer empty interrupt (in continuous transfer mode)
can be selected.
None
7, 8, or 9 bits
Max. f /6 [bps] (SDRmn [15:9] = 2 or more), Min. f
MCK
Non-reverse output (default: high level)
Reverse output (default: low level)
The following selectable
 No parity bit
 Appending 0 parity
 Appending even parity
 Appending odd parity
The following selectable
 Appending 1 bit
 Appending 2 bits
MSB or LSB first
CHAPTER 11 SERIAL ARRAY UNIT
UART0
/(2  2  128) [bps]
15 Note
CLK
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