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
0x145E[3]
0x14A0[7]
0x14AB[5]
0x14B0[7]
Name
Values
LCD_ENB
SPI_ENB
RDY_ENB
W2S_ENB
0
0
0
0
1
0
0
0
1
1
0
0
0
1
0
0
0
1
1
0
0
0
0
1
Functions
Pin Number
Pin Name
0x145E[2:0]
for LCD driver
Control
SPI for LCD
driver
SPI for
data flash
GPIO
ISD15000
W2S
11
13
14
15
16
17
LED
CS
GPIO 3
GPIO 11
GPIO 10
GPIO 9
GPIO 8
GPIO 12
GPIO 03
GPIO 11
GPIO 3
SPI_CS
SPI_CLK
GPIO 9
GPIO 3
SPI_CS
SPI_RDY
SPI_CS
GPIO 3
GPIO 11
W2S_SCL
GPIO 9
LCD_CKN
(0x145E[B1])
SCLK
SDI
SPI_CLK
SPI_SDI
SPI_SDO
GPIO 12
SPI_CLK
SPI_SDI
SPI_SDO
GPIO 12
GPIO 09
LCD_TX
(0x145E[B0])
LCD_CSN
SDO
CSL
SPI_DO
Pull High
W2S_SDA
GPIO 12
(0x145E[B2])
34
Rev1.2
NUVOTEM TALEMA [ NUVOTEM TALEMA ]
