W681308DG Datasheet, PDF (2/64 Pages) Nuvotem Talema – W681308 USB Audio Controller from Nuvoton integrates fast 8051 Microcontroller Unit (MCU)

W681308
XXXX PRODUCT DESCRIPTION
TABLE OF CONTENT
1. GENERAL DESCRIPTION ............................................................................................................................................... 6
2. FEATURES....................................................................................................................................................................... 6
3. PIN CONFIGURATION..................................................................................................................................................... 8
4. PIN DESCRIPTION .......................................................................................................................................................... 9
5. BLOCK DIAGRAM.......................................................................................................................................................... 11
6. MEMORY MAP............................................................................................................................................................... 12
6.1 PROGRAM MEMORY MAP ........................................................................................................................................... 12
6.2 DATA MEMORY MAP .................................................................................................................................................. 12
7. REGISTERS ................................................................................................................................................................... 13
7.1 MCU CLOCK RATE SELECT REGISTER ....................................................................................................................... 13
7.2 INTERRUPT CONTROL REGISTERS .............................................................................................................................. 13
7.3 KEYPAD IO, LCD, UART AND GPIO CONTROL REGISTERS ......................................................................................... 13
7.4 GAIN STAGE AND MIXER CONTROL REGISTERS............................................................................................................ 14
7.5 PCM CONTROL REGISTERS....................................................................................................................................... 14
7.6 CODEC CONTROL REGISTERS.................................................................................................................................. 14
7.7 SPI CONTROL REGISTERS......................................................................................................................................... 15
7.8 W2S CONTROL REGISTERS....................................................................................................................................... 15
7.9 RING TONE (PWM) CONTROL REGISTERS .................................................................................................................. 16
7.10 FULL/HALF DUPLEX ACOUSTIC ECHO CANCELLATION (AEC) CONTROL REGISTERS ........................................................ 16
7.11 USB CONTROLLER REGISTERS.................................................................................................................................. 18
8. MICROCONTROLLER ................................................................................................................................................... 21
8.1 FEATURES................................................................................................................................................................ 21
8.2 MEMORY ORGANIZATION ........................................................................................................................................... 21
8.2.1 Program Memory ............................................................................................................................................... 21
8.2.2 Data Memory ..................................................................................................................................................... 21
8.2.3 Special Function Registers (SFR) ..................................................................................................................... 22
8.3 POWER MANAGEMENT............................................................................................................................................... 22
8.4 RESET CONDITIONS .................................................................................................................................................. 23
8.4.1 External Reset ................................................................................................................................................... 23
8.4.2 Watchdog Reset ................................................................................................................................................ 23
8.5 INTERRUPTS ............................................................................................................................................................. 23
8.6 PROGRAMMING TIMERS AND COUNTERS ..................................................................................................................... 24
8.6.1 Timers/Counters 0 and 1 ................................................................................................................................... 24
8.6.2 Timer/Counter 2................................................................................................................................................. 25
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