SM59A16U1
8-Bit Micro-controller
64KB with ISP Flash
& 6K+256B RAM embedded
17. LVI & LVR – Low Voltage Interrupt and Low Voltage Reset
The interrupt vector 63h
Mnemonic
Description
Dir.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RST
Watchdog Timer
Low voltage
control register
LVI_E
N
LVC
E6h
LVRLPE LVRE
LVSIF
-
-
LVIS[1:0]
20H
17.1
Low Voltage Control Register( LVC )
Mnemonic: LVC
Address: E6h
Reset
7
6
5
4
3
2
1
0
LVSI
F
LVI_EN
LVRLPE
LVRE
-
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.
LVRLPE: Internal low voltage reset low power function enable bit. (Refer MCU core voltage)
Suggest using this function when MCU is on power down mode.
LVRLPE = 0 - disable Internal low voltage reset function.
LVRLPE = 1 - enable Internal low voltage reset function.
(When the internal voltage is below 1 V, it will generate reset.
LVRE: External low voltage reset function enable bit. (Refer MCU‟s VDD voltage).
LVRE = 0 - disable external low voltage reset function.
LVRE = 1 - enable external low voltage reset function.
(When the external voltage is below 1.6V, it will generate reset.)
LVSIF: Low Voltage Status Flag.
LVIS[1:0]: Low Voltage Interrupt Select:
00: 1.75V
01: 2.75V
10: 3.35V
11: 4.20V
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M071 Ver A SM59A16U1 04/12/2013
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SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
