MT6763 Design Notice
GPIO Application Notice
Design Notice: GPIO Selection (1/9）
Be careful of GPIO with 2.8V power domain for 16nm.
• MT6763 GPIO
– Supports 152 GPIOs belonging to 10 power domains
– Power domains of GPIO:
• DVDD18_IORB (1.8V)
• DVDD18_IOLT (1.8V)
• DVDD18_IOLB (1.8V)
• DVDD18_IOBL (1.8V)
• DVDD18_IOBR (1.8V)
• DVDD18_IORT1 (1.8V)
• DVDD18_IORT2 (1.8V)
• DVDD18_MSDC0 (1.8V)
• DVDD28_MSDC1 (1.86V/3.0V)
• DVDD28_SIM1/DVDD28_SIM2 (1.8V/3.0V)
Design Notice: GPIO Selection (2/9)
Remove analog GPIO & EINT function
• AUXIN0 ~4
• DSI0
• CSI0 / CSI1
• WBG IQ
Design Notice: GPIO Selection (3/9)
Pull-up/Pull-down selection
– Choose GPIO with suitable PU/PD after reset state for application
• Example: For “enable pin of audio amplifier”, choose GPIO with PD after reset state.
• Example: For “enable pin of external LDO”, choose GPIO with PD after reset state.
Power domain of IO supply selection
– Choose GPIO with suitable power domain of IO supply for application
Choose suitable GPIO for peripheral IC
▪ Choose GPIOs with matched direction, pull-up/pull-down, data output, GPIOmode after reset state for peripheral IC application.
Design Notice: GPIO Selection (4/9)
Notice on DCT_Tool usage
Design Notice: GPIO Selection (5/9)
MT6763 have no dedicated EINT MUX mode.
• GPIO[0:151] can be configured as “External interrupt mode” except GPIO134~151.
• Click EintMode in DCT tool for external interrupt application.
• After EintMode is selected, this pin will be limited for interrupt usage.
• You can set up pull-up or pull-down in “InPullEn” & “InPull SelHigh”.
Design Notice: GPIO Selection (6/9)
High voltage IO design guide
• MT6763 (16FFC) process IO can sustain 1.8V for general applications.
▪ Maximum IO voltage is 1.98V.
• For application requiring IO voltage over 1.98 volt, 1V8/2V8 IO design is required.
▪ Be careful of the schematic design for different applications.
▪ DCT tool should be configured properly based on the schematic design
注：不正确的设计或设置会降低IO的可靠性。
Design Notice: GPIO Selection (7/9)
High voltage IO overview
Design Notice: GPIO Selection (8/9)
High voltage IO DCT configuration
• Defined in DCT tool TDSEL/RDSEL Setting page
▪ “DVDD28_MSDC1” is applied to define the voltage level ofMSDC1_CMD/CLK/DAT[0:3]. For T-card/embedded SD application, select VMC
Design Notice: GPIO Selection (9/9)
MT6763 supports x134 EINTs
▪ GPIO[0:151] can be configured as “External interrupt mode” exceptGPIO134~151.
Only EINT[0:15] supports HW de-bounce
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