SM39R08A5 Datasheet, PDF (48/58 Pages) SyncMOS Technologies,Inc – Additional Baud Rate Generator

SM39R08A5
8-Bit Micro-controller
with 8KB Flash
& 256B RAM embedded
13.LVI – Low Voltage Interrupt
The interrupt vector 63h.
Mnemonic Description
RSTS
LVC
Reset status
register
Low voltage
control register
Direct Bit 7
A1h
-
Bit 6 Bit 5 Bit 4
Watchdog Timer
-
- PDRF
Bit 3 Bit 2
WDTF SWRF
Bit 1
LVRF
Bit 0
PORF
RESET
00H
E6h LVI_EN -
LVRE LVIF
-
-
LVIS
20H
Mnemonic: RSTS
7
6
5
-
-
-
4
PDRF
3
2
WDTF SWRF
1
LVRF
Address: A1h
0
Reset
PORF 00H
PDRF: Pad reset flag.
When MCU is reset by reset pad, PDRF flag will be set to one by hardware. This flag
clear by software.
LVRF: Low voltage reset flag.
When MCU is reset by LVR, LVRF flag will be set to one by hardware. This flag clear by
software.
PORF: Power on reset flag.
When MCU is reset by POR, PORF flag will be set to one by hardware. This flag clear
by software.
Mnemonic: LVC
Address: E6h
7
6
5
4
3
2
1
0
Reset
LVI_EN -
LVRE LVIF
-
-
LVIS[1:0]
20H
LVI_EN: Low voltage interrupt function enable bit.
LVI_EN = 0 - disable low voltage detect function.
LVI_EN = 1 - enable low voltage detect function.
LVRE: External low voltage reset function enable bit.
LVRE = 0 - disable external low voltage reset function.
LVRE = 1 - enable external low voltage reset function.
LVIF: Low Voltage interrupt Flag (Read only)
LVIS LVI level select:
00: 1.7V
01: 2.60V
10: 3.2V
11: 4.0V
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M067
Ver E SM39R08A5 06/30/2015
- 48 -