EPC901 Datasheet, PDF (18/37 Pages) Espros Photonics corp – CCD line sensor 1024x1 pixel

10.1.4. Single-byte read
During a single-byte read, only one register is read. After the device address is transmitted, the master has to transmit the register ad -
dress. After addressing the epc901 IC with a read-command, it transmits the read data. The access is terminated with a NACK and a
STOP by the master.
Device address
Device address
S00 1
0 A Register address A S 0 0 1
1A
Read data
NP
10.1.5. Multi-byte read
During a multi-byte read operation the master transmits the device address and the address of the first register to be read. Afterwards, the
epc901 is addressed with a read command. It then transmits data bytes until the master applies NACK and a STOP.
Device address
Device address
S001
0 A Register address A S 0 0 1
1 A Read data 0 A Read data 1 A
Read data n N P
Registers reside in a non-consecutive address space. Reading to a unused address will return no useful data.
10.1.6. Software reset
S0 0 0 0 0 00 0A0 0 0 0 0 11 0AP
A software reset has the same effect like a power-up reset. E.g. the chip uses the configuration as given by the configuration pins. Also, all
trimming parameters are reset to the initial values.
10.1.7. Re-sampling the device address
S0 0 0 0 0 00 0A0 0 0 0 0 10 0 AP
By applying this command, the pins CS0 and CS1 are read and updated in the internal address register.
10.2. Setup latency
The new register value becomes active with the falling edge of the last bit transmitted.
© 2016 ESPROS Photonics Corporation
Characteristics subject to change without notice
18 / 37
Datasheet_epc901-V5.6
www.espros.com