upd78f0103 Renesas Electronics Corporation., upd78f0103 Datasheet - Page 332
upd78f0103
Manufacturer Part Number
upd78f0103
Description
8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD78F0103.pdf
(485 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
upd78f0103HMC-5A4-A
Manufacturer:
NEC
Quantity:
20 000
Company:
Part Number:
upd78f0103M6MC-5A4
Manufacturer:
NEC
Quantity:
312
- Current page: 332 of 485
- Download datasheet (4Mb)
332
(2) When used as interrupt
• When starting operation
<1> Mask the LVI interrupt (LVIMK = 1).
<2> Set the detection voltage using bits 2 to 0 (LVIS2 to LVIS0) of the low-voltage detection level selection
<3> Set bit 4 (LVIE) of the low-voltage detection register (LVIM) to 1 (enables reference voltage generator
<4> Use software to instigate a wait of at least 2 ms.
<5> Set bit 7 (LVION) of LVIM to 1 (enables LVI operation).
<6> Use software to instigate a wait of at least 0.2 ms.
<7> Wait until it is checked that (supply voltage (V
<8> Clear the interrupt request flag of LVI (LVIIF) to 0.
<9> Release the interrupt mask flag of LVI (LVIMK).
<10> Execute the EI instruction (when vectored interrupts are used).
Figure 19-5 shows the timing of the interrupt signal generated by the low-voltage detector. The numbers in
this timing chart correspond to <1> to <9> above.
Caution If “POC used” is selected by a mask option, procedures <3> and <4> are not required.
• When stopping operation
Either of the following procedures must be executed.
•
•
When using 8-bit memory manipulation instruction:
When using 1-bit memory manipulation instruction:
register (LVIS).
operation).
Write 00H to LVIM.
Clear LVION to 0 first, and then clear LVIE to 0.
CHAPTER 19 LOW-VOLTAGE DETECTOR
User’s Manual U15836EJ5V0UD
DD
) > detection voltage (V
LVI
)) by bit 0 (LVIF) of LVIM.
Related parts for upd78f0103
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Renesas Technology Corp [Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series]
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
RENESAS MCU M16C FAMILY / M16C/Tiny SERIES
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Renesas Starter Kit for RX210
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas StarterKit for RX630
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas Starter Kit+ for RX63N
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas Starter Kit
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
FLASH PROGRAMMER FOR RENESAS MICROCONTROLLERS
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet: