R5F212B7SNFP#U0 Renesas Electronics America, R5F212B7SNFP#U0 Datasheet - Page 414

• Manufacturer Part Number: R5F212B7SNFP#U0
• Description: IC R8C/2B MCU FLASH 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/2Br

Specifications of R5F212B7SNFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 55
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 64-LQFP
• For Use With: R0K5212D8S001BE - KIT STARTER FOR R8C/2DR0K5212D8S000BE - KIT DEV FOR R8C/2D
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/2A Group, R8C/2B Group
Rev.2.00
REJ09B0324-0200
Figure 15.14
15.2.1
Table 15.7
i = 0 to 2
Bit Rate
14400
19200
28800
31250
38400
51200
(bps)
1200
2400
4800
9600
In UART mode, the bit rate is the frequency divided by the UiBRG (i = 0 to 2) register.
Nov 26, 2007
Bit Rate
UiBRG register setting value =
UiBRG register setting value =
UART mode
Calculation Formula of UiBRG (i = 0 to 2) Register Setting Value
Bit Rate Setting Example in UART Mode (Internal Clock Selected)
i = 0 to 2
Source
Count
• Internal clock selected
• External clock selected
BRG
f8
f8
f8
f1
f1
f1
f1
f1
f1
f1
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Setting Value
129 (81h)
129 (81h)
42 (2Ah)
64 (40h)
32 (20h)
86 (56h)
64 (40h)
39 (27h)
32 (20h)
23 (17h)
UiBRG
System Clock = 20 MHz
Fj: Count source frequency of the UiBRG register (f1, f8, or f32)
fEXT: Count source frequency of the UiBRG register (external clock)
Actual Time
14367.82
19230.77
29069.77
31250.00
37878.79
52083.33
(bps)
1201.92
2403.85
4734.85
9615.38
Bit Rate × 16
Bit Rate × 16
fEXT
fj
Error (%)
-1.36
-0.22
-1.36
0.16
0.16
0.16
0.16
0.94
0.00
1.73
Setting Value
- 1
- 1
12 (0Ch)
12 (0Ch)
15 (0Fh)
51 (33h)
25 (19h)
51 (33h)
34 (22h)
25 (19h)
16 (10h)
9 (09h)
UiBRG
System Clock = 8 MHz
Time (bps)
Actual
14285.71
19230.77
31250.00
38461.54
50000.00
29411.76
1201.92
2403.85
4807.69
9615.38
15. Serial Interface
Error (%)
-0.79
-2.34
0.16
0.16
0.16
0.16
0.16
2.12
0.00
0.16