W681308
XXXX PRODUCT DESCRIPTION
8.6.3 Watchdog Timer ................................................................................................................................................ 25
8.7
8.8
SERIAL PORT (UART)............................................................................................................................................... 28
OTP ROM .............................................................................................................................................................. 28
9.
CLOCK CONTROL AND RESET ................................................................................................................................... 29
9.1
CLOCK CONTROL...................................................................................................................................................... 29
9.1.1 Overview............................................................................................................................................................ 29
9.1.2 Clock Generation............................................................................................................................................... 29
9.1.3 Control Register................................................................................................................................................. 30
INTERRUPT CONTROL ............................................................................................................................................ 31
10.
10.1
10.2
10.3
11.
OVERVIEW ............................................................................................................................................................... 31
FUNCTIONALITY ........................................................................................................................................................ 31
INTERRUPT CONTROL REGISTERS .............................................................................................................................. 32
INTERFACE LOGIC................................................................................................................................................... 33
SOFTWARE KEYPAD SCANNER ................................................................................................................................... 33
GPIO S ................................................................................................................................................................... 34
LCD CONTROL......................................................................................................................................................... 35
UART I/O CONTROL................................................................................................................................................. 35
PCM INTERFACE , GAIN STAGE AND MIXER ........................................................................................................ 36
PCM INTERFACE ...................................................................................................................................................... 36
GAIN STAGE ............................................................................................................................................................. 36
MIXER ..................................................................................................................................................................... 37
CONNECTION CASE EXAMPLE .................................................................................................................................... 37
MIXER CASE EXAMPLES WITH REGISTER SETTING ....................................................................................................... 39
I2S REGISTER SETTING EXAMPLE .............................................................................................................................. 42
AUDIO CODEC INTERFACE..................................................................................................................................... 43
OVERVIEW ............................................................................................................................................................... 43
AUDIO CODEC SIGNAL PATH.................................................................................................................................... 43
MICROPHONE INTERFACE AND AUXILIARY INTERFACE ................................................................................................... 44
SERIAL PERIPHERAL INTERFACE.......................................................................................................................... 47
OVERVIEW ............................................................................................................................................................... 47
DATA AND SIGNAL FORMAT OF SPI............................................................................................................................ 47
FSM OF SPI ............................................................................................................................................................ 47
FIFO AND RAM OF SPI ............................................................................................................................................ 48
INTERRUPT SOURCES................................................................................................................................................ 48
NUVOTON 2-WIRE SERIAL BUS.............................................................................................................................. 49
11.1
11.2
11.3
11.4
12.
12.1
12.2
12.3
12.4
12.5
12.6
13.
13.1
13.2
13.3
14.
14.1
14.2
14.3
14.4
14.5
15.
3
Rev1.2
NUVOTEM TALEMA [ NUVOTEM TALEMA ]
