UPD78F1000GB-GAF-AX Renesas Electronics America, UPD78F1000GB-GAF-AX Datasheet - Page 944

• Manufacturer Part Number: UPD78F1000GB-GAF-AX
• Description: MCU 16BIT 78K0R/KX3-L 44-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Kx3-Lr

Specifications of UPD78F1000GB-GAF-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: 33
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 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: -

78K0R/Kx3-L
R01UH0106EJ0300 Rev.3.00
Oct 01, 2010
(3) Port mode register 12 (PM12)
When using the P120/EXLVI/INTP0 pin for external low-voltage detection potential input, set the PM120 bit to 1. At
this time, the output latch of P120 may be 0 or 1.
The PM12 register can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets this register to FFH.
Address: FFF2CH
Symbol
PM12
Cautions 2. Change the low-voltage detection level select register (LVIS) value with either of the
PM120
0
1
3. When an input voltage from the external input pin (EXLVI) is detected, the detection
4. To read the LVIS register after writing this register, secure the time of one or more clock.
7
1
following methods.
voltage (V
• When changing the value after stopping LVI
• When changing the value after setting to the mode used as an interrupt (LVIMD = 0)
After reset: FFH
Output mode (output buffer on)
Input mode (output buffer off)
<1> Stop LVI (LVION = 0).
<2> Change the LVIS register.
<3> Set to the mode used as an interrupt (LVIMD = 0).
<4> Mask LVI interrupts (LVIMK = 1).
<5> Enable LVI operation (LVION = 1).
<6> Before cancelling the LVI interrupt mask (LVIMK = 0), clear it with software
<1> Mask LVI interrupts (LVIMK = 1).
<2> Set to the mode used as an interrupt (LVIMD = 0).
<3> Change the LVIS register.
<4> Before cancelling the LVI interrupt mask (LVIMK = 0), clear it with software
Figure 23-4. Format of Port Mode Register 12 (PM12)
because an LVIIF flag may be set when LVI operation is enabled.
because an LVIIF flag may be set when the LVIS register is changed.
6
1
EXLVI
) is fixed. Therefore, setting of the LVIS register is not necessary.
R/W
5
1
P120 pin I/O mode selection
4
1
CHAPTER 23 LOW-VOLTAGE DETECTOR
3
1
2
1
1
1
PM120
0
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