DataSheet_SB16C1053APCI_v106

SB16C1053APCI

PCI Target Controller with 2 Serial, 1 Parallel and MIO Bus

PCI to 2S+1P with MIO Bus Bridge

JULY 2013 REV 1.06

Figure 11–4: Break Condition Block Diagram

11.7 Multi Drop Mode (9-bit Data Transmission)

Some micro-controllers use 9-bit serial communication for several years. It is started

when Intel’s 8051 micro-controller used 9-bit serial communication, and then, it has been

spread out in the market. Serial communication transmits 8-bit data generally. But, 9-bit

Serial communication is that transmitting 9-bit data literally.

Figure 11–5: Serial Data Format

A multi-drop system consists of master device and slave device in RS422 or RS485

communication. That is because several slave devices are used common data bus line

for common. In multi-drop mode, each slave uses distinct address (ID) and a master can

communicate with each slave separately using this address.

Character #1

MCR[6] = 0

MCR[6] = 1

Transmitter Shift Register(TSR)

TX FIFO

TXD PIN

MCR[6] = 0

Character #2

TSR Output

MCR[6] = 0

Brake Condition Output

16X Clock