VS1000 Datasheet
4 PACKAGES AND PIN DESCRIPTIONS
4.2 LQFP-48 Pin Descriptions
Pin Name LQFP
Pin
Pin
Type
Function
XRESET 1 DI Active low asynchronous reset, schmitt-trigger input
NFDIO0 / GPIO0_0 2 DIO Nand-flash IO0 / General-purpose IO Port 0, bit 0
NFDIO1 / GPIO0_1 3 DIO Nand-flash IO1 / General-purpose IO Port 0, bit 1
NFDIO2 / GPIO0_2 4 DIO Nand-flash IO2 / General-purpose IO Port 0, bit 2
NFDIO3 / GPIO0_3 5 DIO Nand-flash IO3 / General-purpose IO Port 0, bit 3
DGND0 6 DGND Core & I/O ground
IOVDD1 7 IOPWR I/O power supply
TEST 8 DI Test mode input (active high), connect to DGND
NFDIO4 / GPIO0_4 9 DIO Nand-flash IO4 / General-purpose IO Port 0, bit 4
NFDIO5 / GPIO0_5 10 DIO Nand-flash IO5 / General-purpose IO Port 0, bit 5
NFDIO6 / GPIO0_6 11 DIO Nand-flash IO6 / General-purpose IO Port 0, bit 6
NFDIO7 / GPIO0_7 12 DIO Nand-flash IO7 / General-purpose IO Port 0, bit 7
NFRDY / GPIO0_8 13 DIO Nand-flash READY / General-purpose IO Port 0, bit 8
NFRD / GPIO0_9 14 DIO Nand-flash RD / General-purpose IO Port 0, bit 9
NFCE / GPIO0_10 15 DIO Nand-flash CE / General-purpose IO Port 0, bit 10
NFCLE / GPIO0_12 16 DIO Nand-flash CLE / General-purpose IO Port 0, bit 12
NFALE / GPIO0_13 17 DIO Nand-flash ALE / General-purpose IO Port 0, bit 13
DGND1 18 DGND Core & I/O ground
IOVDD2 19 IOPWR I/O power supply
NFWR / GPIO0_11 20 DIO Nand-flash WR / General-purpose IO Port 0, bit 11
CS2 / GPIO0_14 21 DIO General-purpose IO Port 0, bit 14
XCS / GPIO1_0 22 DIO SPI XCS / General-Purpose I/O Port 1, bit 0
SCLK / GPIO1_1 23 DIO SPI CLK / General-Purpose I/O Port 1, bit 1
SI / GPIO1_2 24 DIO SPI MISO / General-Purpose I/O Port 1, bit 2
SO / GPIO1_3 25 DIO SPI MOSI / General-Purpose I/O Port 1, bit 3
TX / GPIO1_4 26 DIO UART TX / General-Purpose I/O Port 1, bit 4
RX / GPIO1_5 27 DIO UART RX / General-Purpose I/O Port 1, bit 5
XTALI 28 AI Crystal input
XTALO 29 AO Crystal output
IOVDD 30 IOPWR I/O power supply, Regulator output
DGND2 31 DGND Core & I/O ground
CVDD 32 CPWR Core power supply, Regulator output
VHIGH 33 PWR Power supply, Regulator input
AVDD 34 APWR Analog power supply, Regulator output
USBP 35 AIO USB differential + in / out, controllable 1.5kΩpull-up
USBN 36 AIO USB differential - in / out
PWRBTN 37 APB / DI Power button for Regulator startup and Power Key
AGND0 38 APWR Analog ground
AVDD1 39 APWR Analog power supply
RIGHT 40 AO Right channel output
AGND1 41 APWR Analog ground
AGND2 42 APWR Analog ground
CBUF 43 AO Common voltage buffer for headphones (1.2V nominal)
AVDD2 44 APWR Analog power supply
RCAP 45 AIO Filtering capacitance for reference
AVDD3 46 APWR Analog power supply
LEFT 47 AO Left channel output
AGND3 48 APWR Analog ground
Version: 1.5, 2016-06-09 13