UPD78F1009GB-GAH-AX Renesas Electronics America, UPD78F1009GB-GAH-AX Datasheet - Page 533

• Manufacturer Part Number: UPD78F1009GB-GAH-AX
• Description: MCU 16BIT 78K0R/KX3-L 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Kx3-Lr

Specifications of UPD78F1009GB-GAH-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0R/Kx3-L CHAPTER 10 COMPARATORS/PROGRAMMABLE GAIN AMPLIFIERS (78K0R/KC3-L, KD3-L, KE3-L only)
R01UH0106EJ0300 Rev.3.00
Oct 01, 2010
Figure 10-12. Using the Internal Reference Voltage for the Comparator Reference Voltage (Using a Comparator
Remark
CnRVM register setting
CnCTL register setting
PER1 register setting
PIM8 register setting
OAM register setting
Wait (1.5 s or more)
PM8 register setting
Wait (3 s or more)
CnVRE bit setting
OAEN bit setting
CnEN bit setting
CnOE bit setting
n = 0, 1
Operation start
Start
μ
μ
and a Programmable Gain Amplifier)
Enable the programmable gain amplifier operation by
setting (1) the OAEN bit of the OAM register. At the same
time, enable the external input from the programmable
gain amplifier input pin (PGAI). The programmable gain
amplifier output signal will be input as the positive-side
input voltage of the comparator.
Cancel the reset state of the comparator or
programmable gain amplifier and start clock
supply.
Use the CnVRS0 to CnVRS2 bits of the CnRVM
register to select the internal reference voltage.
Enable the comparator operation by setting (1)
the CnEN bit of the CnCTL register.
Enable the comparator output signal by setting
(1) the CnOE bit of the CnCTL register.
Set the PM8 register to the input mode.
Set to the digital input disable state
(use port 8 as the analog input).
Set the amplification factor by using the OAVG0 to
OAVG2 bits of the OAM register.
Set to use the internal reference voltage by setting
(1) the CnVRE bit of the CnRVM register. The
internal reference voltage will be input to the
negative side of the comparator at the same time.
Use the CnINV bit of the CnCTL register
to select forwarding or reversing of the
output. Use the CnDFS0 to CnDFS2 bits
to select the noise elimination width.
533