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參數資料
| 型號： | R2023K |
| 廠商： | Ricoh Co., Ltd. |
| 英文描述： | 2-wire Serial Interface Real Time Clock IC |
| 中文描述： | 2線串行接口實時時鐘芯片 |
| 文件頁數： | 27/50頁 |
| 文件大?。?/td> | 512K |
| 代理商： | R2023K |
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R2023K/T
The second method to reading data from the internal register is to start reading immediately after writing to the
Internal Address Pointer and the Transmission Format Register. Although this method is not based on I
2
C-Bus
standard in a strict sense it still effective to shorten read time to ease load to the master. Set 4h to the transmission
format register when this method used.
Example 2 of data read (when data is read from internal addresses Eh to 1h)
27
1
S
A
A
Data
/A P
Master to slave
Slave to Master
S
Start Condition
A
A
/A
Acknowledge Signal
Address
Pointer
←
Eh
0 1
1
0 0
0
1
Transmission
Format
Register
←
4h
1
0
A
Slave Address
←
(0110010)
1
0
0
1
A
Data
A
Data
Reading of data from
the internal address Eh
R/W=0(Write)
P
Stop Condition
Data
Reading of data from
the internal address Fh
Reading of data from
the internal address 0h
Reading of data from
the internal address 1h
The third method to reading data from the internal register is to start reading immediately after writing to the Slave
Address and R/W bit. Since the Internal Address Pointer is set to Fh by default as described in the first method,
this method is only effective when reading is started from the Internal Address Fh.
Example 3 of data read (when data is read from internal addresses Fh to 3h)
S
A
A
Data
/A
P
Master to slave
Slave to master
S
Start Condition
A
A
/A
Acknowledge Signal
1
0
A
Slave Address
←
(0110010)
1
0
0 1
0
1
A
Data
A
Data
R/W=1(Read)
P
Stop Condition
Data
Data
Reading of data from
the Internal Address Fh
Reading of data from
the Internal Address 0h
Reading of data from
the Internal Address 1h
Reading of data from
the Internal Address 2h
Reading of data from
the Internal Address 3h
相關PDF資料 |
PDF描述 |
|---|---|
| R2023K-E2 | 2-wire Serial Interface Real Time Clock IC |
| R2023T | 2-wire Serial Interface Real Time Clock IC |
| R2023T-E2 | 2-wire Serial Interface Real Time Clock IC |
| R2025D | High precision I2C-Bus Real-Time Clock Module |
| R2025S | High precision I2C-Bus Real-Time Clock Module |
相關代理商/技術參數 |
參數描述 |
|---|---|
| R2023K-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2-wire Serial Interface Real Time Clock IC |
| R2023T | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2-wire Serial Interface Real Time Clock IC |
| R2023T-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2-wire Serial Interface Real Time Clock IC |
| R2-0257-02 | 制造商:Southco 功能描述: |
| R2-0259-02 | 制造商:Southco 功能描述: |
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