W681308DG Datasheet, PDF (34/64 Pages) Nuvotem Talema – W681308 USB Audio Controller from Nuvoton integrates fast 8051 Microcontroller Unit (MCU)

W681308
XXXX PRODUCT DESCRIPTION
11.2 GPIO s
W681308 has 25 GPIO pins that are mainly used for keypad scanner, LCM controller, SPI, W2S, PCM interface, UART port,
JTAG interface and GPIO s.
NOTE: The pin function for LED, CS, SCLK, SDI, SDO and CSL will act as different functions according to the setting of
LCD_ENB (0x145E), SPI_ENB (0x14A0), RDY_ENB(0x14AB) and W2S_ENB(0x14B0).
Address
Name
Values
0x145E[3] LCD_ENB
0
1
1
0
0
0
0x14A0[7]
SPI_ENB
0
0
1
1
1
0
0x14AB[5] RDY_ENB
0
0
0
0
1
0
0x14B0[7] W2S_ENB
0
0
0
0
0
1
Pin Number Pin Name
11
LED
13
CS
14
SCLK
15
SDI
16
SDO
17
CSL
GPIO
GPIO 3
GPIO 11
GPIO 10
GPIO 9
GPIO 8
GPIO 12
0x145E[2:0]
for LCD driver
Control
GPIO 03
Functions
SPI for LCD
SPI for
driver
data flash
GPIO 3
GPIO 3
GPIO 11
LCD_CKN
(0x145E[B1])
GPIO 09
LCD_TX
(0x145E[B0])
LCD_CSN
(0x145E[B2])
SPI_CS
SPI_CLK
GPIO 9
SPI_DO
Pull High
SPI_CS
SPI_CLK
SPI_SDI
SPI_SDO
GPIO 12
ISD15000
SPI_RDY
SPI_CS
SPI_CLK
SPI_SDI
SPI_SDO
GPIO 12
W2S
GPIO 3
GPIO 11
W2S_SCL
GPIO 9
W2S_SDA
GPIO 12
34
Rev1.2