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參數(shù)資料
| 型號： | RX-4045NBAA |
| 元件分類： | XO, clock |
| 英文描述： | REAL TIME CLOCK, PDSO22 |
| 封裝： | ROHS COMPLIANT, SON-22 |
| 文件頁數(shù)： | 24/37頁 |
| 文件大?。?/td> | 554K |
| 代理商： | RX-4045NBAA |
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RX - 4045 SA / NB
Page - 27
MQ442-01
8.9.3. Read methods for data transfer
1) Single-byte read method
The first data read method transfers each byte of data independently.
The target address for reading is specified by the address pointer and "Ch" is written to the transfer format
register.
After one byte of data has been transferred, the transfer can be terminated by setting the CE pin to low level,
or the transfer operation can be continued by specifying a new target address and transfer format.
1
0
Data
Example of data read (from addresses Eh and 2h)
CE
DO
2h is set
to
address
pointer
1
0 0
1
Ch is set
to transfer
format
register
Data is read from
address Eh
Data is read from
address 2h
0
1
0
1 0 0
0 1
Eh is set to
address
pointer
Ch is set to
transfer
format
register
DI
Host-side transmitter
RTC-side transmitter
2) Burst read method
The second data read method transfers data consecutively.
The target address for writing is specified by the address pointer and "4h" is written to the transfer format
register. The address pointer is incremented each time a byte is transferred.
The next address pointer value after Fh is 0h.
Lastly, the transfer is terminated by setting the CE pin to low level.
1
Data
Example of data read (from addresses Fh, 0h, and 1h)
CE
DO
1
0
0 0
1
Data is read from
address 0h
Data is read from
address 1h
Fh is set to
address
pointer
4h is set to
transfer
format
register
Data
Data is read from
address Fh
DI
Host-side transmitter
RTC-side transmitter
3) Consecutive read and consecutive write
After reading one byte or writing one byte, this method enables another transfer to be performed
consecutively.
1
Data
Example of consecutive data read/write (reading and writing of data at address Fh)
CE
DO
Fh is set
to
address
pointer
1
0 0
1
8h is set
to transfer
format
register
Read data at
address Fh
Write data to
address Fh
1
0 0 0
1 1
Fh is set to
address
pointer
Ch is set
to transfer
format
register
Data
DI
Host-side transmitter
RTC-side transmitter
* The following table provides a summary of the relation between the read/write format and settings in the transfer
format register.
Single byte
Burst
(consecutive)
Write to RTC
8h (1,0,0,0)
0h (0,0,0,0)
Read from RTC
Ch (1,1,0,0)
4h (0,1,0,0)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RX-4045SA | 制造商:EPSON 制造商全稱:EPSON 功能描述:4-wire serial interface high-stability RTC module |
| RX-4045SA,(AA) | 制造商:Epson Toyocom 功能描述:Serial Interface RTC SOP 14pin |
| RX-4045SAAA | 制造商:Epson Toyocom Corporation 功能描述:Cut Tape 制造商:Epson Toyocom Corporation 功能描述:RTC HI STABILITY SERIAL SMD SOP14 制造商:Epson Toyocom Corporation 功能描述:RTC HI STABILITY SERIAL, SMD, SOP14 制造商:Epson Toyocom Corporation 功能描述:RTC HI STABILITY SERIAL, SMD, SOP14; Date Format:YYYY:MM:DD:Hr:Min:Secs; Clock Format:12Hr / 24Hr; Clock IC Type:RTC; Supply Voltage Min:1.7V; Supply Voltage Max:5.5V; Digital IC Case Style:SOP; No. of Pins:14; Interface Type:Serial;;RoHS Compliant: Yes |
| RX-409 | 功能描述:烙鐵 SOLDERING TIP RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included |
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