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參數(shù)資料
| 型號： | CY7C63833 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | enCoRe II Low-Speed USB Peripheral Controller(enCoRe II低速USB外設(shè)控制器) |
| 中文描述： | enCoRe II還低速USB外設(shè)控制器（enCoRe II還低速的USB外設(shè)控制器） |
| 文件頁數(shù)： | 29/74頁 |
| 文件大?。?/td> | 1441K |
| 代理商： | CY7C63833 |
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CY7C63310
CY7C638xx
Document 38-08035 Rev. *I
Page 29 of 74
13.0
Low-voltage Detect Control
Table 13-1. Low-voltage Control Register (LVDCR) [0x1E3] [R/W]
Bit #
7
6
5
4
3
2
1
0
Field
Reserved
PORLEV[1:0]
Reserved
VM[2:0]
Read/Write
–
–
R/W
R/W
–
R/W
R/W
R/W
Default
0
0
0
0
0
0
0
0
This register controls the configuration of the Power-on Reset/Low-voltage Detection block
Bit [7:6]:
Reserved
Bit [5:4]:
PORLEV[1:0]
This field controls the level below which the precision power-on-reset (PPOR) detector generates a reset
0 0 = 2.7V Range (trip near 2.6V)
0 1 = 3V Range (trip near 2.9V)
1 0 = 5V Range, >4.75V (trip near 4.65V)
1 1 = PPOR will not generate a reset, but values read from the Voltage Monitor Comparators Register (
Table 13-2
) give the
internal PPOR comparator state with trip point set to the 3V range setting
Bit 3:
Reserved
Bit [2:0]:
VM[2:0]
This field controls the level below which the low-voltage-detect trips—possibly generating an interrupt and the level at which the
Flash is enabled for operation.
LVD Trip Point
(V) Min
Point (V) Typ
(V) Max
000
2.681
2.70
2.735
001
2.892
2.92
2.950
010
2.991
3.02
3.053
011
3.102
3.13
3.164
100
4.439
4.48
4.528
101
4.597
4.64
4.689
110
4.680
4.73
4.774
111
4.766
4.82
4.862
VM[2:0]
LVD Trip
LVD Trip Point
Table 13-2. Voltage Monitor Comparators Register (VLTCMP) [0x1E4] [R]
Bit #
7
6
5
4
3
2
1
0
Field
Reserved
LVD
PPOR
Read/Write
–
–
–
–
–
–
R
R
Default
0
0
0
0
0
0
0
0
This read-only register allows reading the current state of the Low-voltage-Detection and Precision-Power-On-Reset compar-
ators
Bit [7:2]:
Reserved
Bit 1:
LVD
This bit is set to indicate that the low-voltage-detect comparator has tripped, indicating that the supply voltage has gone below
the trip point set by VM[2:0] (See
Table 13-1
)
0 = No low-voltage-detect event
1 = A low-voltage-detect has tripped
Bit 0:
PPOR
This bit is set to indicate that the precision-power-on-reset comparator has tripped, indicating that the supply voltage is below
the trip point set by PORLEV[1:0]
0 = No precision-power-on-reset event
1 = A precision-power-on-reset event has occurred
Note:
This register can only be accessed in the second bank of I/O space. This requires setting the XIO bit in the CPU flags
register.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CY7C638334-LTXC | 制造商:Cypress Semiconductor 功能描述: |
| CY7C638335-LFXC | 制造商:Cypress Semiconductor 功能描述: |
| CY7C638335-LTXC | 制造商:Cypress Semiconductor 功能描述: |
| CY7C63833-LFXC | 功能描述:USB 接口集成電路 8K Flash 256 byte RAM COM RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| CY7C63833-LTXC | 功能描述:USB 接口集成電路 USB Peripheral Cntrl 8K/256 32-QFN RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
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