HT1382_1105 HOLTEK [Holtek Semiconductor Inc], HT1382_1105 Datasheet - Page 19
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HT1382_1105
Manufacturer Part Number
HT1382_1105
Description
I2C/3-Wire Real Time Clock
Manufacturer
HOLTEK [Holtek Semiconductor Inc]
Datasheet
1.HT1382_1105.pdf
(29 pages)
- Current page: 19 of 29
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HT1382
I
Rev. 1.40
2
C/3-Wire Real Time Clock
Data Input and Data Out
In writing a data byte, R/W is cleared to 0 in the Command Byte and is then followed by the
corresponding data register address on the rising edge of the next eight SCLK. Additional SCLK
cycles are ignored. Data inputs are entered starting with bit 0. In reading data from the register, the
R/W is set to 1 in the Command Byte. The data bits are output on the falling edge of the next eight
SCLK cycles. Note that the first data bit to be transmitted on the first falling edge after the last bit of the
read command byte is written. Additional SCLK cycles re-transmits the data bytes as long as CE
remains at high level. Data outputs are read starting with bit 0.
Single Byte Transfer
Burst Mode Transfer
19
May 27, 2011
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