R5F21162SP#U0 Renesas Electronics America, R5F21162SP#U0 Datasheet - Page 55

• 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 9.2
System Clock Control Register 0
b7 b6 b5 b4
NOTES :
0
1.
2.
3.
4.
5. When entering stop mode from high or middle speed mode, the CM06 bit is set to “1” (divide-by-8 mode).
Set the PRC0 bit in the PRCR register to “1” (enables w riting) before rew riting to this register.
The CM05 bit is to stop the main clock w hen the on-chip oscillator mode is selected.
Do not use this bit for w hether the main clock is stopped. To stop the main clock, set the bits in the follow ing
orders:
(a) Set the OCD1 to OCD0 bits in the OCD register to “00b” (oscillation stop detection function disabled).
(b) Set the OCD2 bit to “1” (selects on-chip oscillator clock).
Set the CM05 bit to “1” (main clock stops) and the CM13 bit in the CM1 register to “1” (XIN-XOUT pin) w hen the
external clock is input.
When the CM05 bit is set to “1” (stops main clock), P4_6 and P4_7 can be used as input ports.
Jan 19, 2006
0
b3 b2 b1 b0
1
CM0 Register
0 0
Bit Symbol
(b1-b0)
Symbol
CM02
CM05
CM06
CM0
(b3)
(b4)
(b7)
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—
—
—
—
Reserved Bit
WAIT Peripheral Function Clock Stop Bit 0 : Peripheral function clock does not
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”
1 : Peripheral function clock stops in
Set to “1”
Set to “0”
0 : Main clock oscillates
1 : Main clock stops
0 : Enables CM16, CM17
1 : Divide-by-8 mode
Set to “0”
stop in w ait mode
w ait mode
After Reset
Function
68h
(3)
9. Clock Generation Circuit
RW
RW
RW
RW
RW
RW
RW
RW