R5F21162SP#U0 Renesas Electronics America, R5F21162SP#U0 Datasheet - Page 56

• 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 9.3
System Clock Control Register 1
b7 b6 b5 b4 b3 b2 b1 b0
NOTES :
1.
2.
3.
4.
5.
6.
7.
8.
Set the PRC0 bit in the PRCR register to “1” (enables w riting) before rew riting to this register.
When entering stop mode from high or middle speed mode, this bit is set to “1” (drive capacity HIGH).
When the CM06 bit is set to “0” (CM16, CM17 bits enabled), this bit is enabled.
When the CM10 bit is set to “1” (stop mode), the internal feedback resistor is disabled.
When the OCD2 bit is set to “0” (selects main clock), the CM14 bit is set to “1” (stops low -speed
on-chip oscillator). When the OCD2 bit is set to “1” (selects on-chip oscillator clock), the CM14 bit is set to “0”
(low -speed on-chip oscillator on). It remains unchanged even if it is set to “1”.
When using the voltage detection interrupt, CM14 bit is set to “0” (low -speed on-chip oscillator on).
When the CM10 bit is set to “1” (stop mode) or the CM05 bit in the CM0 register to “1” (main clock stops) and the
CM13 bit is set to “1” (XIN-XOUT pin), the XOUT (P4_7) pin becomes “H”.
When the CM13 bit is set to “0” (input ports, P4_6, P4_7), the P4_7 (XOUT) enters input mode.
In count source protect mode (Refer to 12.2 Count Source Protect Mode ), the value remains unchanged even if
the CM10 and CM14 bits are set.
Jan 19, 2006
0 0
CM1 Register
Bit Symbol
Symbol
CM10
CM13
CM14
CM15
CM16
CM17
CM1
(b1)
(b2)
Page 41 of 254
—
—
All Clock Stop Control Bit
Reserved Bit
Reserved Bit
Port XIN-XOUT Sw itch Bit
Low -speed On-Chip Oscillation Stop
Bit
XIN-XOUT Drive Capacity Select Bit
System Clock Division Select Bit 1
(1)
(5,6,8)
Address
Bit Name
0007h
(4,7,8)
(7)
(3)
(2)
0 : Clock oscillates
1 : All Clocks stop (stop mode)
Set to “0”
Set to “0”
0 : Input port P4_6, P4_7
1 : XIN-XOUT Pin
0 : Low -speed on-chip oscillator on
1 : Low -speed on-chip oscillator off
0 : LOW
1 : HIGH
b7 b6
0 0 : No division mode
0 1 : Divide-by-2 mode
1 0 : Divide-by-4 mode
1 1 : Divide-by-16 mode
After Reset
Function
20h
9. Clock Generation Circuit
RW
RW
RW
RW
RW
RW
RW
RW
RW