KB2502 查看數據表（PDF） - Samsung

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KB2502

VIDEO AMP MERGED OSD PROCESSOR FOR MONITORS

Samsung 

KB2502

Preliminary

VIDEO AMP MERGED OSD PROCESSOR FOR MONITORS

FUNCTIONAL DESCRIPTIONS

DATA TRANSMISSION

The interface between KB2502 and MCU follows the I2C protocol. After the starting pulse, the transmission takes

place in the following order: Slave address with R/W bit, 2-byte register address, 2-byte data, and stop condition.

an acknowledge signal is received for each byte, excluding only the start/stop condition. The 2-byte register

address is composed of an 8-bit row address, and an 8-bit column address. The order of transmission for a 2-byte

register address is 'Row address → Column address'. The 2 bytes of data is because KB2502 has a 16-bit base

register configuration. KB2502's slave address is BAh. It is BBh in read mode, and BAh in write mode.

• Address Bit Pattern for Display Registers Data

(a) row address bit pattern

R3 - R0: Valid data for row address

A15

A14

A13

A12

A11

A10

A9

A8

X

X

X

X

R3

R2

R1

R0

(b) Column address bit pattern

C4 - C0: Valid data for column address

A7

A6

A5

A4

A3

A2

A1

A0

X

X

X

C4

C3

C2

C1

C0

X:Don't care bit

• Data Transmission Format

Start → Slave address → ACK → Row address → ACK → Column address → ACK

Data byte N → ACK → Data byte N+1 → ACK → Stop

Figure 5. Data Transmission Format at Writing Operation

Start → Slave address → ACK → Row address → ACK → Column address → ACK → Stop

Start → Slave address → ACK → Data byte N → ACK → Data byte N+1 → ACK → Stop

Figure 6. Data Transmission Format at Reading Operation

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