R5F21162SP#U0 Renesas Electronics America, R5F21162SP#U0 Datasheet - Page 43

• 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 6.4
Voltage Detection Register 1
Voltage Detection Register 2
b7 b6 b5 b4 b3 b2 b1
NOTES :
b7 b6 b5 b4 b3 b2 b1 b0
NOTES :
0 0 0 0
1.
2. The softw are reset, w atchdog timer reset and voltage monitor 2 reset do not affect this register.
1.
2.
3.
4.
0 0 0 0 0 0
The VCA13 bit is enabled w hen the VCA27 bit in the VCA2 register is set to “1” (voltage detection 2 circuit enabled).
The VCA13 bit is set to “1” (VCC ≥ Vdet 2) w hen the VCA27 bit in the VCA2 register is set to “0” (voltage detection 2
circuit disabled).
Set the PRC3 bit in the PRCR register to “1” (w rite enable) before w riting to this register.
When using the voltage monitor 1 reset, set the VCA26 bit to “1”.
After the VCA26 bit is set from “0” to “1”, the voltage detection circuit elapses for td(E-A) before starting operation.
When using the voltage monitor 2 interrupt / reset or the VCA13 bit in the VCA1 register, set the VCA27 bit to “1”.
After the VCA27 bit is from “0” to “1”, the voltage detection circuit elapses for td(E-A) before starting operation.
The softw are reset, w atchdog timer reset and voltage monitor 2 reset do not affect this register.
Jan 19, 2006
0
VCA1 and VCA2 Registers
0 0
b0
Bit Symbol
Bit Symbol
(b2-b0)
(b7-b4)
(b5-b0)
VCA26
VCA27
Symbol
VCA13
Symbol
VCA1
VCA2
Page 28 of 254
—
—
—
(1)
Reserved Bit
Voltage Detection 2 Signal Monitor
Flag
Reserved Bit
Reserved Bit
Voltage Detection 1 Enable Bit
Voltage Detection 2 Enable Bit
(1)
Address
Bit Name
Address
Bit Name
0031h
0032h
(2)
(3)
Set to “0”
0 : VCC < Vdet2
1 : VCC ≥ Vdet2 or voltage detection 2
Set to “0”
Pow er-On Reset, Voltage Monitor 1Reset
: 01000000b
Set to “0”
0 : Voltage detection 1 circuit disabled
1 : Voltage detection 1 circuit enabled
0 : Voltage detection 2 circuit disabled
1 : Voltage detection 2 circuit enabled
circuit disabled
Hardw are Reset : 00h
After Reset
After Reset
00001000b
Function
Function
6. Voltage Detection Circuit
(2)
(4)
RW
RW
RW
RW
RW
RW
RW
RO