R5F21133DFP RENESAS [Renesas Technology Corp], R5F21133DFP Datasheet - Page 204

• Manufacturer Part Number: R5F21133DFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY/R8C/Tiny SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

R8C/13 Group
Rev.1.20
REJ09B0111-0120
19.5 Serial Interface
(1) When reading data from the UiRB (i=0,1) register even in the clock asynchronous serial I/O mode or
(2) When writing data to the UiTB register in the clock asynchronous serial I/O mode with 9-bit transfer
Example (when reading transmit buffer register):
Example (when reading receive buffer register):
in the clock synchronous serial I/O mode. Be sure to read data in 16-bit unit. When the high-byte of
the UiRB register is read, the PER and FER bits of the UiRB register and the RI bit of the UiC1
register are set to "0".
data length, data should be written high-byte first then low-byte in 8-bit unit.
Jan 27, 2006
MOV.W
MOV.B
MOV.B
page 193 of 205
00A6H, R0
#XXH, 00A3H
#XXH, 00A2H
; Read the U0RB register
; Write the high-byte of U0TB register
; Write the low-byte of U0TB register
19. Usage Notes