HM8563 datasheet(15/22 Pages) HMSEMI

Part #	HM8563

Description	OA equipments such as Fax machines

PDF	22 Pages

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Manufacturer	HMSEMI [Shenzhen Huazhimei Semiconductor Co., Ltd]

Direct Link	http://www.hmsemi.com/

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• 14 •

Fig 9 Acknowledge on the I2C-bus

3.2 I2C of

HM8563

Before any data is transmitted on the I2C -bus, the device which should respond is

addressed first. The addressing is always carried out with the first byte transmitted after the

start procedure.

HM8563 acts as a slave receiver or slave transmitter. Therefore the clock signa lSCLis

only an input signal, but the data signal SDA is a bidirectional line.

HM8563 slavea ddress is shown in Fig 10.

Fig 10 Slave address

The I2C -bus configuration for the different

HM8563 read and write cycles are shown in Fig

11, 12 and 13. The word address is a four bit value that defines which register is to be

accessed next. The upper four bits of the word address are not used.

Fig 11 Master transmits to slave receiver (write mode)

HM8563

HM8563 Datasheet(PDF) 15 Page - Shenzhen Huazhimei Semiconductor Co., Ltd