Maxim-integrated DS4830 Optical Microcontroller Manuel d'utilisateur télécharger pdf (Page 89)

DS4830 User’s Guide

SECTION 11 – I

C-COMPATIBLE SLAVE INTERFACE

The DS4830 provides an I

C-compatible slave controller that allows the DS4830 to communicate with a host device. This

controller can also operate as an SMBUS slave. Also designed into the I

C slave controller is the ability to bootload the

DS4830 with new user Flash memory. The I

C slave interface can be setup to provide system interrupts after each I

event. Figure 11-1 shows the basic operation flow of the I

C slave controller. The blocks in Figure 11-1 that are shaded

are shown in more detail in Figure 11-2.

Detect STOP

I2CSPI=1

I2CBUS=0

I2CNACKI

Receive

Slave

Address

Transmit

Data

Detect START

I2CSRI=1

I2CBUS=1

I2CBUSY=1

I2CAMI=1

STOP ?

R/W Bit

I2CMODE

Receive

Data

STOP ?

Figure 11-1: Slave I

C Flow

1 2 ... 84 85 86 87 88 89 90 91 92 93 94 ... 226 227

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Maxim-integrated DS4830 Optical Microcontroller Manuel d'utilisateur Page 89