s-24cs16a Seiko Instruments Inc., s-24cs16a Datasheet - Page 12

• Manufacturer Part Number: s-24cs16a
• Description: 2-wire Cmos Serial E2prom
• Manufacturer: Seiko Instruments Inc.

12
2-WIRE CMOS SERIAL E
S-24CS16A
5. Device Addressing
To start communication, the master device on the system generates a start condition to the bus line. Next, the master
device sends 7-bit device address and a 1-bit read / write instruction code on to the SDA bus.
The 4 most significant bits of the device address are called the “Device Code”, and are fixed to “1010”.
The successive 3 bits (P2, P1 and P0) are used to define a page address and choose the eight 256-byte memory
blocks.
MSB
1
2
PROM
Device Code
0
1
Figure 13 Device Address
Seiko Instruments Inc.
0
P2
Page Address
P1
P0
R / W
LSB
Rev.5.1
00