R5F21122FP#U0 Renesas Electronics America, R5F21122FP#U0 Datasheet - Page 115

• 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
Figure 13.11 Calculation Formula of UiBRG (i=0 to 1) Register Setting Value
Table 13.7 Bit Rate Setting Example in UART Mode
Bit Rate
14400
19200
28800
31250
38400
51200
1200
2400
4800
9600
(bps)
13.2.3 Bit Rate
Divided-by-16 of frequency by the UiBRG (i=0 to 1) register in UART mode is a bit rate.
Jan 27, 2006
<UART Mode>
• When selecting internal clock
Setting value to the UiBRG register =
• When selecting external clock
Setting value to the UiBRG register =
Count Source
fj : Count source frequency of the UiBRG register (f1SIO, f8SIO and f32SIO)
fEXT : Count source frequency of the UiBRG register (external clock)
BRG
f8
f8
f8
f1
f1
f1
f1
f1
f1
f1
page 103 of 181
BRG Setting Value Actual Time(bps) Error(%)
103 (67
103 (67
51 (33
25 (19
68 (44
51 (33
34 (22
31 (1F
25 (19
19 (13
System Clock = 16MHz
16
16
16
16
16
16
16
16
16
16
)
)
)
)
)
)
)
)
)
)
14492.75
19230.77
28571.43
31250.00
38461.54
50000.00
1201.92
2403.85
4807.69
9615.38
Bit Rate
Bit Rate
fEXT
fj
13.2 Clock Asynchronous Serial I/O (UART) Mode
–0.79
–2.34
0.16
0.16
0.16
0.16
0.64
0.16
0.00
0.16
16
16
–1
–1
BRG Setting Value Actual Time(bps) Error(%)
51 (33
25 (19
12 (0C
51 (33
34 (22
25 (19
16 (10
15 (0F
12 (0C
9 (09
16
16
16
16
16
16
16
16
16
16
System Clock = 8MHz
)
)
)
)
)
)
)
)
)
)
14285.71
19230.77
29411.76
31250.00
38461.54
50000.00
1201.92
2403.85
4807.69
9615.38
–0.79
–2.34
0.16
0.16
0.16
0.16
0.16
2.12
0.00
0.16