參數(shù)資料
型號: S1C621A0F0A0100
元件分類: 微控制器/微處理器
英文描述: MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數(shù): 135/161頁
文件大?。?/td> 1037K
代理商: S1C621A0F0A0100
I-50
EPSON
S1C621A0 TECHNICAL HARDWARE
CHAPTER 3: PERIPHERAL CIRCUITS (AMP and SVD)
SVD
(Supply voltage
detector)
The S1C621A0 contains a supply voltage detector (SVD).
Low battery voltage can be detected by software. If viewed
from the CPU, the SVD circuit has the same configuration as
the AMP circuit as shown in Figure 3.10.2.
When SVDON = 1, |VSS| |V SVD| and SVDDT = 0 can be read.
When SVDON = 1, |VSS| |V SVD| and SVDDT = 1 can be read.
When SVDON = 0, SVDDT = 1 can be read.
SVDON
This register (0F6H, D2) controls SVD circuit power ON/
OFF switching to save power. Data can be written to or
read from the SVDON register. Writing 1 into the register
supplies SVD power. Writing 0 into the register turns
SVD power off (power-save mode). At initial reset, SVDON
is set to 0.
SVDDT
When the supply voltage is less than the threshold
|VSVD| with SVDON = 1, the SVD circuit output goes to
0. When the supply voltage exceeds the threshold, the
SVD circuit output goes to 1. Software can read these
valued to detect any low voltage. The data (read-only) is
assigned to 0F6H, D3 of the memory space. With SVDON
= 0, the SVD circuit output is fixed to 1 and the read data
(SVDDT) also goes to 1.
V DD
V SS
SVDON
Input
control
Power
control
Data bus (D3)
Address (F6H)
Data bus (D2)
Address (F6H)
SVD
circuit
SVDDT
Fig. 3.10.2
SVD Block Diagram
相關(guān)PDF資料
PDF描述
S1C63158D0A010P 4-BIT, FLASH, 4 MHz, MICROCONTROLLER, UUC53
S1C7XXXF00E199 16-BIT, 90 MHz, RISC MICROCONTROLLER, PQFP
S2041 PHOTO TRANSISTOR DETECTOR
S3P44R10 TRIGGER OUTPUT SOLID STATE RELAY, 4000 V ISOLATION-MAX
S3S12P128J0VQK 16-BIT, MROM, 1.05 MHz, MICROCONTROLLER, PQFP80
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S1C63004 制造商:EPSON 制造商全稱:EPSON 功能描述:CMOS 4-bit Single Chip Microcontroller
S1C63008 制造商:EPSON 制造商全稱:EPSON 功能描述:CMOS 4-bit Single Chip Microcontroller
S1C63016 制造商:EPSON 制造商全稱:EPSON 功能描述:CMOS 4-bit Single Chip Microcontroller
S1C63158 制造商:EPSON 制造商全稱:EPSON 功能描述:4-bit Single Chip Microcomputer
S1C63408 制造商:EPSON 制造商全稱:EPSON 功能描述:4-bit Single Chip Microcomputer