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F75122R Datasheet(PDF) 8 Page - Feature Integration Technology Inc. |
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F75122R Datasheet(HTML) 8 Page - Feature Integration Technology Inc. |
8 / 35 page - 6 - July, 2007 V0.28P LED OD16 VSB3V LED control output. The multi-function pin is selected by register, so does the freq. programming IRQ OD16 VSB3V IRQ and SMI# function WDTOUT11# OD16 VSB3V The 1 st Watch Dog Timer time out output. System reset signal when the Reset-Out timer is time out. This pin will generate 100mS pulse (default) when the Reset-Out timer is timeout. 4 ~ 9 VIDIN[0:5] INlv VSB3V CPU Voltage ID input GPIO13 I/O16ts General purpose I/O pin. 3 I2C_ADDR INtsd100k VSB3V The GPIO serial bus hardware power on setting pin. Default address is 0x9C (when I2C_ADDR=0). Another one is 0x6E (when I2C_ADDR=1). This pin internal pull-down 100k to Ground. If this pin is pull-up 10k to VSB3V, this pin will be trapped to 1. 13 SDATA I/OD12ts VSB3V SMbus data. 14 SCLK INts VSB3V SMBus clock 15 RSTOUT# OD12 VSB3V System reset signal when the Reset-Out timer is time out. This pin will generate 100mS pulse when the Reset-Out timer is timeout. 17 SLOTOCC# INts VBAT Powered by VBAT. CPU detect pin. 24 ~ 19 VIDOUT[0:5] OD16 VSB3V CPU Voltage ID output. 28 SEL INtsd100k VSB3V Default pull up to 3VSB. 2,27,26,25 GPIO[30:33] I/OD12ts VSB3V General purpose I/O pins. 6. Functional Description 6.1 General Description The F75122 provides VIDIN, VIDOUT function. It can latch the VIDIN from CPU side, and output VIDOUT to PWM. The VIDOUT value can be programmed by the interface GPIO Serial Bus serial interface. Dedicate GPIO functions. That includes two set watchdog timer. The watchdog timer timeout unit is set to second and range is 0 to 31 seconds. When the timeout has occurred, that will generate a status bit to indicate it and write one will be clear. All GPIO can be programmed to logic one or zero or high pulse or low pulse. |
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