描述 Description

The GPM8F3708B is a highly integrated microcontroller which integrates a pipelined 1T 8051 CPU, 512-bytes XRAM, 256-bytes IDM SRAM and 8K-byte program Flash. ?It also includes up to 21 programmable multi-functional I/Os, Timer0/1/2, UART0, SPI(master), I2C, ADC, and capacitive touch sensor for general-purpose application. ?It operates over a wide voltage range of 1.8V - 5.5V and wide temperature range of -40℃~85℃. It has two modes in power management unit. ?There is also one on chip debug circuit with two pins to facilitate full speed in-system debug. ?The detail is described in the following sections.

特性 Features

? CPU
? High speed, high performance 1T 8051
? 100% software compatible with industry standard 8051
? Pipeline RISC architecture enables to execute instructions 10 times faster than standard 8051
? Up to 24.5MHz clock operation


? Memories
? 256 bytes XRAM
? 256 bytes internal Data Memory (IDM) SRAM
? 8K bytes Flash with high endurance
? Minimum 200,000 program/erase cycles
? Minimum 20 years data retention

? Programming read only level for software security

? Clock Management
? Internal oscillator: 24.5MHz±2% @ 2.4V~5.5V
? External clock input max 24.5MHz
? Crystal input with 32768Hz or 1MHz~25MHz

? Power Management
? 1 STOP mode for power saving
? 1 IDLE mode for only peripheral operation

? Interrupt Management - 13 interrupt sources
? Up to 4 external interrupt sources

? Reset Management
? Power On Reset (POR)
? Low Voltage Reset (LVR)
? Pad Reset (PAD_RST)
? Watchdog Reset (WDT_RST)
? Software Reset (S/W_RST)
? Stop mode Reset (STOP_RST)
? Miss Clock Reset (MISS_CLK_RST)
? Flash Related Error Reset (FLASH_ERR_RST)

? Programmable Watchdog Timer
? A time-base generator
? An event timer
? System

? I/O Ports
? Max. 20 multifunction bi-directional I/Os
? Each incorporate with pull-up resistor, pull-down resistor, output high, output low or floating input, depending on programmer''s settings on the corresponding registers
? I/O ports with 20mA current sink
? I/O ports with 8mA current drive

? Two 16-bit Timer/Counter (Timer 0/1)
? Timer mode with clock source selectable
? Auto reload 8-bit timers
? Externally gated event counters

? One Powerful Timer 2 with 16-bit Compare/Capture Unit
? Timer mode with clock source selectable
? Auto-reload 16-bit timers
? Externally gated event counters
? Event capturing
? Pulse width modulation and measurement

? UART0
? One synchronous mode
? Three asynchronous modes

? SPI (master mode)
? Programmable phase and polarity of master clock
? Programmable master SPI_CLK clock frequency
? Max SPI clock: 6.125MHz (FOSC /4) @24.5MHz

? One 6-channel 8-bit resolution mode - One 6-channel 12-bit resolution mode
? Max conversion clock: 6.125MHz (FOSC /4) @24.5MHz

? Built-in OP Circuit
? Debug Unit