Maxim Integrated DS4830A Optical Microcontroller - Manual (Page 11)

DS4830A User’s Guide
11
SECTION 1 – OVERVIEW
The DS4830A optical microcontroller is a low-power, 16-bit microcontroller with a unique peripheral set supporting a wide
variety of optical transceiver controller applications. It provides a complete optical control, calibration, and monitor
solution. The DS4830A is based on the high-performance, 16-bit, reduced instruction set computing (RISC) architecture
with on-chip flash program memory and SRAM data memory.
The resources and features that the DS4830A provides for monitoring and controlling an optical system include the
following:
 16-Bit Low-Power Microcontroller
 400kHz I
2
C-Compatible Slave Communication Interface
• Four User-Programmable Slave Addresses
• 8-Byte Transmit Page for Each Slave Address
• 8-Byte Receive Page Shared Between All Slave Addresses
 32KWords Flash Program Memory
 2KWords Data RAM
 32-Level Hardware Stack
 13-Bit ADC with a 26 Input Mux
• 16 Single or 8 Differential Mode ADC Channels
• Four User-Selectable Gains for Individual Channel
• V
DD
, Internal Reference, and DAC External References Measurement
• ADC Samples Averaging Options
 10 PWM Channels
• Pulse Spreading Using Delta-Sigma Algorithm
• PWM Output Synchronization
• User-Selectable 7- to 16-Bit Resolution
• 1MHz Switching Using 133MHz External Clock
 10-Bit Fast Comparator with 16 Input Mux
• Single and Differential Mode
• Low and High Threshold Configurations
• 3.2µs Conversion Time per Channel
 Two Independent Sample and Hold (S/H)
• Single, Fast, and Dual Mode Operation
• Internal and External Trigger Option
• Pin Discharge
• S/H Samples Averaging Options
 Fast Internal Die Temperature Sensors with Averaging Option
 12-Bit, 8 Voltage DAC Channels Selectable Internal or External Reference Option
 Serial Interfaces
• SPI Master and Slave Interface
• 400kHz I 2 C-Compatible Master with Alternate Location Option
• 3-Wire Master Interface
 Dual Hardware Multiplier Unit
 Two 16-Bit Timers with Synchronous and Compare Modes
 Watchdog Timer
 Maskable Interrupt Sources
 Brownout Monitor
 31 GPIO pins
 Supply Voltage Monitoring
 Internal 20MHz Oscillator, CPU Core Frequency 10MHz
 Included ROM Routines that allow Bootloading and In-Application Programming of Flash Memory
 In-System Debugging
 Four Software Interrupts
 Fast Hardware CRC-8 for Packet Error Checking (PEC)