R5F21162SP#U0 Renesas Electronics America, R5F21162SP#U0 Datasheet - Page 154

• Manufacturer Part Number: R5F21162SP#U0
• Description: IC R8C MCU FLASH 8K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/16r

Specifications of R5F21162SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SIO, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• 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 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/16 Group, R8C/17 Group
Rev.2.10
REJ09B0169-0210
Figure 14.11
14.2.2
Table 14.7
Bit Rate
14400
19200
28800
31250
38400
51200
(bps)
1200
2400
4800
9600
Divided-by-16 of frequency by the U0BRG register in UART mode is a bit rate.
Jan 19, 2006
Bit Rate
Setting value to the U0BRG register =
Setting value to the U0BRG register =
Source
Calculating Formula of U0BRG Register Setting Value
Bit Rate Setting Example in UART Mode
Count
<UART Mode>
BRG
f8
f8
f8
f1
f1
f1
f1
f1
f1
f1
• When selecting internal clock
• When selecting external clock
Page 139 of 254
BRG Setting
129(81h)
129(81h)
42(2Ah)
64(40h)
32(20h)
86(56h)
64(40h)
39(27h)
32(20h)
23(17h)
Value
System Clock = 20MHz
Fj : Count source frequency of the U0BRG register (f1, f8 and f32)
fEXT : Count source frequency of the U0BRG register (external clock)
Time (bps)
Actual
14367.82
19230.77
29069.77
31250.00
37878.79
52083.33
1201.92
2403.85
4734.85
9615.38
Error(%)
Bit Rate x 16
Bit Rate x 16
-1.36
-0.22
-1.36
0.16
0.16
0.16
0.16
0.94
0.00
1.73
fEXT
fj
BRG Setting
12(0Ch)
12(0Ch)
15(0Fh)
51(33h)
25(19h)
51(33h)
34(22h)
25(19h)
16(10h)
9(09h)
Value
- 1
- 1
System Clock
Time (bps)
Actual
14285.71
19230.77
31250.00
38461.54
50000.00
29411.76
1201.92
2403.85
4807.69
9615.38
14. Serial Interface
Error(%)
-0.79
-2.34
0.16
0.16
0.16
0.16
0.16
2.12
0.00
0.16