UPD78F1211GB-GAF-AX Renesas Electronics America, UPD78F1211GB-GAF-AX Datasheet - Page 514

• Manufacturer Part Number: UPD78F1211GB-GAF-AX
• Description: MCU 16BIT 78K0R/LX3 44-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Ix3r

Specifications of UPD78F1211GB-GAF-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

7.6 Overcurrent Detection Function
using the TMOFF0 and TMOFF1 pin inputs or by detecting the Hi-Z state by using a programmable gain amplifier and
a comparator.
of each register and overcurrent detection is shown below.
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The timer output pin (TOn) can be set to a Hi-Z state when an overcurrent occurs by controlling the Hi-Z state by
The following two types of overcurrent detection function are used.
(1) 2-stage overcurrent detection function
(2) Overcurrent/ electromotive force side detection function
Overcurrent detection is specified by using the OPMR and OPCR registers. The relationship between the settings
• 2-stage overcurrent detection function
• Overcurrent/electromotive force side detection function
Caution
<1> Reference voltage of comparator 0 < input signal voltage < reference voltage of comparator 1
<2> Reference voltage of comparator 1 < input signal voltage
<1> Input signal voltage (electromotive force) < comparator 0, or comparator 1 < input signal voltage
Caution
→ Set the TOn pin to a Hi-Z state.
→ Set the TOn pin to a Hi-Z state.
(overcurrent)
→ Set the TOn pin to a Hi-Z state.
Remark
Timer output is automatically restarted in synchronization with the timer cycle when the input signal
voltage is lower than the reference voltage of comparator 0.
Timer output is restarted in synchronization with the next timer cycle by setting a register, when the
input signal voltage is lower than the reference voltage of comparator 0.
Timer output is automatically restarted in synchronization with the timer cycle when the input signal
voltage is higher than the reference voltage of comparator 0 or when it is lower than the reference
voltage of comparator 1.
There is no TMOFF1 pin in the 78K0R/IB3. Consequently, high impedance can only be
controlled by using the TMOFF0 pin.
n: Timer channel number (n = 02 to 07)
the overcurrent detection function, input the signal that is output by the
programmable gain amplifier to the positive-side input of both comparator 0 and
comparator 1.
There is no positive-side input pin for comparator 1 in the 78K0R/IB3. When using
CHAPTER 7 INVERTER CONTROL FUNCTIONS
User’s Manual U19678EJ1V1UD