R5F21162SP#U0 Renesas Electronics America, R5F21162SP#U0 Datasheet - Page 48

• 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
6.3
Table 6.3
NOTES:
Procedure
Table 6.3 lists the Setting Procedure of Voltage Monitor 2 Interrupt and Voltage Monitor 2 Reset
Associated Bit. Figure 6.8 shows the Operating Example of Voltage Monitor 2 Interrupt and Voltage
Monitor 2 Reset. When using the voltage monitor 2 interrupt or voltage monitor 2 reset to exit stop
mode, set the VW2C1 bit in the VW2C register to “1” (digital filter disabled).
1. Set the VW2C7 bit to “1” (when VCC reaches Vdet2 or below) for the voltage monitor 2 reset.
2. When the VW2C0 bit is set to “0” (disabled), procedures 3, 4 and 5 can be executed simultaneously
3
4
5
1
2
6
7
8
9
(2)
(2)
(2)
(with 1 instruction).
Voltage Monitor 2 Interrupt and Voltage Monitor 2 Reset
Jan 19, 2006
Associated Bit
Set the VCA27 bit in the VCA2 register to “1” (voltage detection 2 circuit enabled)
Wait for td(E-A)
Select the sampling clock of the digital filter
by the VW2F0 to VW2F1 bits in the VW2C
register
Set the VW2C1 bit in the VW2C register to
“0” (digital filter enabled)
Set the VW2C6 bit in
the VW2C register to
“0” (voltage monitor 2
interrupt mode)
Set the VW2C2 bit in the VW2C register to “0” (passing of Vdet2 is not detected)
Set the CM14 bit in the CM1 register to “0”
(low-speed on-chip oscillator on)
Wait for the sampling clock of the digital filter
x 4 cycles
Set the VW2C0 bit in the VW2C register to “1” (enables voltage monitor 2 interrupt / reset)
Setting Procedure of Voltage Monitor 2 Interrupt and Voltage Monitor 2 Reset
Voltage Monitor 2
Interrupt
Page 33 of 254
When Using Digital Filter
Set the VW2C6 bit in
the VW2C register to
“1” (voltage monitor 2
reset mode)
Voltage Monitor 2
Reset
Select the timing of the interrupt and reset
request by the VW2C7 bit in the VW2C
register
Set the VW2C1 bit in the VW2C register to
“1” (digital filter disabled)
Set the VW2C6 bit in
the VW2C register to
“0” (voltage monitor 2
interrupt mode)
−
− (no wait time)
Voltage Monitor 2
Interrupt
(1)
When Not Using Digital Filter
6. Voltage Detection Circuit
Set the VW2C6 bit in
the VW2C register to
“1” (voltage monitor 2
reset mode)
Voltage Monitor 2
Reset