
x
S3FB42F MICROCONTROLLER
Table of Contents (Continued)
Chapter 21
I
2C Bus Interface
Overview .............................................................................................................................................21-1
Functional Description .................................................................................................................21-2
I2C Special Registers...........................................................................................................................21-3
Multi-Master I2C-Bus Control Register ...........................................................................................21-3
Multi-Master I2C-Bus Control/Status Register (IICSR) .....................................................................21-4
Multi-Master I2C-Bus Transmit/Receive Data Register (IICDATA)......................................................21-5
Multi-Master I2C-Bus Address Register (IICADDR)..........................................................................21-5
Prescaler Counter Register (IICCNT)..............................................................................................21-6
Chapter 22
Random Number Generator
Overview .............................................................................................................................................22-1
Functional Description .................................................................................................................22-3
Random Number Control Register .................................................................................................22-3
Ring Oscillator ............................................................................................................................22-4
Linear Feedback Shift Register 8 (LFSR8) .....................................................................................22-5
Linear Feedback Shift Register 16 (LFSR16)..................................................................................22-5
Chapter 23
USB
USB Peripheral Features.....................................................................................................................23-1
Functional Specification ...............................................................................................................23-1
USB Module Block Diagram .................................................................................................................23-2
Function Description............................................................................................................................23-3
USB Function Registers Description .....................................................................................................23-5
USB Releated Registers ......................................................................................................................23-6
Chapter 24
Embedded Flash Memory Interface
Overview .............................................................................................................................................24-1
Tool Program Mode .....................................................................................................................24-1
Flash Memory Control Register.....................................................................................................24-3