R5F211B1SP#U0 Renesas Electronics America, R5F211B1SP#U0 Datasheet - Page 78
![IC R8C MCU FLASH 4K 20SSOP](/photos/12/35/123585/r5f211b1sp_u0_sml.jpg)
R5F211B1SP#U0
Manufacturer Part Number
R5F211B1SP#U0
Description
IC R8C MCU FLASH 4K 20SSOP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/R8C/Tiny/1Br
Datasheets
1.R5F211A2SPU0.pdf
(51 pages)
2.R5F211A2SPU0.pdf
(300 pages)
3.R5F211A2SPU0.pdf
(341 pages)
Specifications of R5F211B1SP#U0
Core Processor
R8C
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SIO, SSU, UART/USART
Peripherals
LED, POR, Voltage Detect, WDT
Number Of I /o
13
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
384 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
R0K5211B4S001BE - KIT STARTER FOR R8C/18191A1BR0K5211B4S000BE - KIT DEV EVALUATION R8C/1BR0E521174CPE10 - EMULATOR COMPACT R8C/18/19/1
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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- Download datasheet (4Mb)
R8C/1A Group, R8C/1B Group
Rev.1.30
REJ09B0252-0130
Figure 10.2
System Clock Control Register 0
b7 b6 b5 b4 b3 b2 b1 b0
NOTES :
0
1.
2.
3.
4.
5.
Set the PRC0 bit in the PRCR register to 1 (w rite enable) before rew riting the CM0 register.
The CM05 bit stops the main clock w hen the on-chip oscillator mode is selected.
Do not use this bit to detect w hether the main clock is stopped. To stop the main clock, set the bits in the follow ing
order:
(a) Set bits OCD1 and OCD0 in the OCD register to 00b (oscillation stop detection function disabled).
(b) Set the OCD2 bit to 1 (selects on-chip oscillator clock).
To input an external clock, set the CM05 bit to 1 (main clock stops) and the CM13 bit in the CM1 register to 1 (XIN-
XOUT pin).
When the CM05 bit is set to 1 (main clock stops) and the CM13 bit in the CM1 register is set to 0 (P4_6, P4_7), P4_6
and P4_7 can be used as input ports.
When entering stop mode from high or medium speed mode, the CM06 bit is set to 1 (divide-by-8 mode).
Dec 08, 2006
0 1
CM0 Register
0 0
Bit Symbol
(b1-b0)
Symbol
CM02
CM05
CM06
CM0
(b3)
(b4)
(b7)
Page 60 of 315
—
—
—
—
Reserved bits
WAIT peripheral function clock stop
bit
Reserved bit
Reserved bit
Main clock (XIN-XOUT)
stop bit
System clock division select bit 0
Reserved bit
(1)
(2,4)
Address
Bit Name
0006h
(5)
Set to 0.
0 : Peripheral function clock does not stop
1 : Peripheral function clock stops in
Set to 1.
Set to 0.
0 : Main clock oscillates.
1 : Main clock stops.
0 : CM16, CM17 enabled
1 : Divide-by-8 mode
Set to 0.
in w ait mode.
w ait mode.
After Reset
Function
68h
(3)
10. Clock Generation Circuit
RW
RW
RW
RW
RW
RW
RW
RW
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