We can Reverse Engineering MCU Chip Silicon Labs C8051F340, please view the microcontroller ic features for your reference:
Analog Peripherals
HIgh Speed 8051 µC Core 10-Bit ADC
Built-in analog multiplexer with single-ended and differential mode
VREF from external pin, internal reference, or VDD Instructions in 1 or 2 system clocks
48 MIPS and 25 MIPS versions available.
Expanded interrupt handler
· Built-in temperature sensor
· External conversion start input option
Two comparators Memory
– 4352 or 2304 Bytes RAM
Internal voltage reference
Brown-out detector and POR Circuitry
64 or 32 kB Flash; In-system programmable in 512-byte sectors
USB Function Controller
Digital Peripherals
USB specification 2.0 compliant
Full speed (12 Mbps) or low speed (1.5 Mbps) operation
Integrated clock recovery; no external crystal required for full speed or low speed
Supports eight flexible endpoints 1 kB USB buffer memory
Integrated transceiver; no external resistors required
40/25 Port I/O; All 5 V tolerant with high sink current
Hardware enhanced SPI™, SMBus™, and one or two
enhanced UART serial ports
Four general purpose 16-bit counter/timers
16-bit programmable counter array (PCA) with five capture/compare modules
External Memory Interface (EMIF)
On-chip debug circuitry facilitates full speed, non-intrusive in-system debug (No emulator required) Provides breakpoints, single stepping, inspect/modify memory and registers Superior performance to emulation systems using ICE-chips, target pods, and sockets.
Low Frequency (80 kHz) Internal Oscillator Can switch between clock sources on-the-fly.