CPU: ARM920T Core (Samsung S3C2400X01), running at up to 99MHz Display: 3.5" Reflective TFT, 320x240, 256 or 65536 colors (index 239 (255,102,255) is default color key for transparency) Storage: SMC (Smart Media Card), probably any available size supported Memory: 8MB SDRAM (HY57V641620HGT-H) 512KB flash memory (AT49BV040-90VC) for firmware serial EEPROM (SO24LBOX91-BCB0) Connections: - USB connector (1795A-042) - EXT connector (3050-18R-0.5HTBD) : UART, JTAG & I2C http://www.hyupjininc.com/kor/product/3050_1801pin.htm http://www.sebo2000.com/connector/3050%20series.htm Pins: 1=3.3v 10=TXD0/GPF2 2=nRESET 11=IIC-bus[SCL] 3=nTRST 12=IIC-bus[SDA] 4=JTAG[TDI] 13=nRTS0/GPF4 5=JTAG[TMS] 14=nCTS0/GPF5 6=JTAG[TCK] 15=RXD1/GPF1 7=JTAG[TDO] 16=TXD1/GPF3 8=AIN0 17=NoConnection(?) 9=RXD0/GPF0 18=Ground Refer to the CPU data sheet for more info on these signals. - Headphone Jack (TSH-3675(AJ332)) Sound: 8 or 16Bit PCM Stereo DAC (Phillips TDA1330) Power: - 2 AA Batteries (said to last ~12 Hours) - DC Power-Jack (TSH-3675(AJ238S-SMT)), 3.3v "reversed" polarity Controls: 8-Way directional pad (joystick) + A,B,L,R,Start,Select buttons A=GPB14[pin19] B=GPB13[pin18] Start=EINT6/GPE6[pin125] Select=EINT7/GPE7[pin126] L=GPB12[pin17] R=GPB15[pin20] Up=GPB11[pin16] Down=GPB9[pin14] Left=GPB8[pin13] Right=GPB10[pin15] When read, the values will be 0 when pressed & 1 when released. [info shamelessly copied from various sources]