UPD78F1009GB-GAH-AX Renesas Electronics America, UPD78F1009GB-GAH-AX Datasheet - Page 941

• 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
R01UH0106EJ0300 Rev.3.00
Oct 01, 2010
Address: FFFA9H
Symbol
Notes 1.
LVIM
2.
3.
LVION
LVION
LVISEL
<7>
The reset value changes depending on the reset source and the setting of the option byte.
This register is not cleared (00H) by LVI reset.
It is set to “82H” when a reset signal other than LVI is applied if option byte LVIOFF = 0, and to “00H” if
option byte LVIOFF = 1.
Bit 0 is read-only.
The LVION, LVIMD, and LVISEL bits are cleared to 0 in the case of a reset other than an LVI reset.
These are not cleared to 0 in the case of an LVI reset.
LVIMD
LVIF
0
1
0
1
0
1
0
1
Notes 3, 4
Note 3
After reset: 00H
Disables operation
Enables operation
Detects level of supply voltage (V
Detects level of input voltage from the external input pin (EXLVI)
• LVISEL = 0: Generates an internal interrupt signal when the supply voltage (V
• LVISEL = 1: Generates an interrupt signal when the input voltage from an external
• LVISEL = 0: Generates an internal reset signal when the supply voltage (V
• LVISEL = 1: Generates an internal reset signal when the input voltage from an
• LVISEL = 0: Supply voltage (V
• LVISEL = 1: Input voltage from the external input pin (EXLVI) ≥ detection voltage
• LVISEL = 0: Supply voltage (V
• LVISEL = 1: Input voltage from the external input pin (EXLVI) < detection voltage
Figure 23-2. Format of Low-Voltage Detection Register (LVIM)
6
0
Note 1
Low-voltage detection operation mode (interrupt/reset) selection
lower than the detection voltage (V
V
input pin (EXLVI) drops lower than the detection voltage (V
V
detection voltage (V
external input pin (EXLVI) < detection voltage (V
reset signal when EXLVI ≥ V
disabled
(V
(V
5
0
LVI
EXLVI
EXLVI
EXLVI
R/W
or higher (V
) or when EXLVI becomes V
), or when LVI operation is disabled
)
Note 2
Enables low-voltage detection operation
4
0
Voltage detection selection
DD
Low-voltage detection flag
DD
DD
DD
≥ V
) ≥ detection voltage (V
) < detection voltage (V
LVI
)
LVI
) and releases the reset signal when V
).
3
0
EXLVI
.
CHAPTER 23 LOW-VOLTAGE DETECTOR
EXLVI
LVI
LVISEL
) (V
<2>
or higher (EXLVI ≥ V
DD
LVI
LVI
< V
), or when LVI operation is
)
LVI
EXLVI
) or when V
LVIMD
<1>
) and releases the
EXLVI
EXLVI
DD
DD
DD
) (EXLVI <
becomes
).
≥ V
LVIF
) <
<0>
DD
LVI
) drops
.
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