UPD78F1174AGF-GAT-AX Renesas Electronics America, UPD78F1174AGF-GAT-AX Datasheet - Page 725
UPD78F1174AGF-GAT-AX
Manufacturer Part Number
UPD78F1174AGF-GAT-AX
Description
MCU 16BIT 78K0R/KX3 128-LQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Kx3r
Datasheet
1.UPD78F1174AGF-GAT-AX.pdf
(968 pages)
Specifications of UPD78F1174AGF-GAT-AX
Core Processor
78K/0R
Core Size
16-Bit
Speed
20MHz
Connectivity
3-Wire SIO, EBI/EMI, I²C, LIN, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
111
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 16x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Company:
Part Number:
UPD78F1174AGF-GAT-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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22.4.2 When used as interrupt
(1) When detecting level of supply voltage (V
(a) When LVI Default Start Function Stopped Is Set (Option Byte: LVIOFF = 1)
• When starting operation
• When stopping operation
Figure 22-8 shows the timing of the interrupt signal generated by the low-voltage detector. The numbers in
this timing chart correspond to <1> to <8> above.
Either of the following procedures must be executed.
•
•
<1>
<2>
<3>
<4>
<5>
<6>
<7>
<8>
<9>
Write 00H to LVIM.
Clear LVION to 0.
When using 8-bit memory manipulation instruction:
When using 1-bit memory manipulation instruction:
Clear bit 1 (LVIMD) of LVIM to 0 (generates interrupt signal when the level is detected) (default value).
Mask the LVI interrupt (LVIMK = 1).
Clear bit 2 (LVISEL) of the low-voltage detection register (LVIM) to 0 (detects level of supply voltage
Set the detection voltage using bits 3 to 0 (LVIS3 to LVIS0) of the low-voltage detection level
Set bit 7 (LVION) of LVIM to 1 (enables LVI operation).
Use software to wait for the following periods of time (Total 410
Confirm that “supply voltage (V
Clear the interrupt request flag of LVI (LVIIF) to 0.
Release the interrupt mask flag of LVI (LVIMK).
Execute the EI instruction (when vector interrupts are used).
(V
selection register (LVIS).
•
•
•
or “supply voltage (V
(LVIF) of LVIM.
DD
Operation stabilization time (10
Minimum pulse width (200
Detection delay time (200
)) (default value).
CHAPTER 22 LOW-VOLTAGE DETECTOR
DD
) < detection voltage (V
User’s Manual U18432EJ5V0UD
μ
μ
DD
s (MAX.))
DD
s (MIN.))
) ≥ detection voltage (V
)
μ
s (MAX.))
LVI
)” when detecting the rising edge of V
LVI
)” when detecting the falling edge of V
μ
s).
DD
, at bit 0
723
DD
,
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