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參數(shù)資料
| 型號： | 90E32ERGI |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP48 |
| 封裝： | TQFP-48 |
| 文件頁數(shù)： | 20/67頁 |
| 文件大?。?/td> | 777K |
| 代理商： | 90E32ERGI |
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90E32
POLY-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
SPI Interface
27
August 24, 2011
4.2
SPI INTERFACE
The interface works in slave mode as shown in Figure-11.
4.2.1
SPI SLAVE INTERFACE FORMAT
In the SPI mode, data on SDI is shifted into the chip on the rising
edge of SCLK while data on SDO is shifted out of the chip on the falling
edge of SCLK.
Access type:
The first bit on SDI defines the access type as below:
Address:
Fixed 15-bit, following the access type bits. The lower 10-bit is
decoded as address; the higher 5 bits are ‘Don't Care’.
Read/Write data:
Fixed as 16 bits.
Read Sequence:
Figure-12 Read Sequence
Write Sequence:
Figure-13 Write Sequence
4.2.2
RELIABILITY ENHANCEMENT FEATURE
The SPI read/write transaction is CS-low defined. Each transaction
can only access one register.
Within each CS-low defined transaction:
Write: access occurs only when CS goes from low to high and there
are exactly 32 SCLK cycles received during CS low period.
Read: if SCLK>=16 (full address received), data is read out from
internal registers and gets to the SDO pin; and the LastSPIData register
is updated. The R/C registers can only be cleared after the LastSPIData
register is updated.
Instruction
Description
Instruction Format
Read
read from registers
1
Write
write to registers
0
CS
SCLK
SDI
SDO
10
1
2
3
4
5
6
7
8
9
1112
13141516171819202122
24
A3
A6
A5
A4
Register Address
High Impedance
D15
Don't care
D0
16-bit data
23
D14 D13 D12 D11 D10 D9
D8
D7 D6
D5
D4 D3 D2
D1
25
26
A2
A1
A0
27
28
29
30
31
32
A8
X
A7
A9
CS
SCLK
SDI
SDO
10
1234
567
89
11
12
13
14
15
16
17
18
19
20
21
22
23
A3
A7
A6
A5
A4
16-bit data
High Impedance
D0
D7
D6
D5
D4
D3
D2
D1
Register Address
D15
24
D14 D13 D12 D11 D10 D9
D8
A0
A1
A2
25
26
27
28
29
30
31
32
A8
X
A9
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 90E32ERGI8 | 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| 90E36 | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:Poly-Phase High-Performance Wide-Span Energy Metering IC |
| 90E36AERGI | 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| 90E36AERGI8 | 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| 90E36ERGI | 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
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