R5F21122FP#U0 Renesas Electronics America, R5F21122FP#U0 Datasheet - Page 181

• Manufacturer Part Number: R5F21122FP#U0
• Description: IC R8C MCU FLASH 8K 32LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/12r

Specifications of R5F21122FP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SIO, UART/USART
• Peripherals: LED, WDT
• Number Of I /o: 22
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 32-LQFP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13R0E521134EPB00 - KIT EMULATOR PROBE FOR PC7501R0E521134CPE00 - EMULATOR COMPACT R8C/13
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/12 Group
Rev.1.20
REJ09B0110-0120
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):
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".
Example (when reading receive buffer register):
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
00A6H, R0
#XXH, 00A3H
#XXH, 00A2H
page 169 of 181
; Read the U0RB register
; Write the high-byte of U0TB register
; Write the low-byte of U0TB register
19. Usage Notes