SMM205NR30 datasheet(14/20 Pages) SUMMIT

14 / 20 page

SMM205

Preliminary Information

Summit Microelectronics, Inc

2069 1.4 6/23/03

CONFIGURATION REGISTERS

The majority of the configuration registers are grouped

with the general-purpose memory. Writing and reading

the configuration registers is shown in Figures 10, 11

and 12.

Note: Configuration writes or reads of registers 00HEX

to 03HEX should not be performed while the SMM205

is margining.

GENERAL-PURPOSE MEMORY

The 1k-bit general-purpose memory is located at any

slave address. The bus address bits are hard wired

by the address pins A2, A1 and A0. Memory writes

and reads are shown in Figures 13, 14 and 15.

COMMAND AND STATUS REGISTERS

Writes and reads of the command and status registers

are shown in Figures 16 and 17.

GRAPHICAL USER INTERFACE (GUI)

Device configuration utilizing the Windows based

SMM205 graphical user interface (GUI) is highly

recommended. The software is available from the

Summit website (www.summitmicro.com). Using the

GUI in conjunction with this datasheet and Application

Note 38 simplifies the process of device prototyping

and the interaction of the various functional blocks. A

programming Dongle (SMX3200) is available from

Summit to communicate with the SMM205.

The

Dongle connects directly to the parallel port of a PC

and programs the device through a cable using the I

bus protocol. See figure 8 and the SMX3200 Data

Sheet.

Slave Address Bus Address Register Type

Configuration Registers are located in

00 HEX thru 45HEX

ANY

A2 A1 A0

General-Purpose Memory is located in

80 HEX thru FFHEX

Table 1 - Address bytes used by the SMM205.

I2C PROGRAMMING INFORMATION (CONTINUED)

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