W681308DG Datasheet, PDF (13/64 Pages) Nuvotem Talema – W681308 USB Audio Controller from Nuvoton integrates fast 8051 Microcontroller Unit (MCU)

W681308
XXXX PRODUCT DESCRIPTION
7.
Registers
The registers are mapped by function.
7.1
MCU Clock Rate Select Register
Address
0x1440
Name
MCU Rate Select
Mode
R/W
Value At
Reset
0x00
Function
MCU system clock rate selection
7.2
Interrupt Control Registers
Address
0x1441
0x1442
0x1443
Name
Interrupt Source
Interrupt Enable
Interrupt Priority
Mode
R/W
R/W
R/W
Value At
Reset
0x00
0x00
0x00
Function
Enable / Disable Interrupt source
Enable / Disable Interrupt function
Set Interrupt priority
7.3
Keypad IO, LCD, UART and GPIO Control Registers
Address
0x144A~
0x144B
0x144C~
0x144F
0x1450~
0x1453
0x1454~
0x1457
0x1458~
0x145B
0x145E
0x145F
Name
Mode
GPIO [14:0] Pull
Up/Down Control
R/W
Keypad I/O (GPIO
[24:15]) and GPIO
[14:0] Pull Up/Down
R/W
Selection
Keypad I/O(GPIO
[24:15]) and GPIO
R/W
[14:0] Status
Keypad I/O(GPIO
[24:15]) and GPIO
R/W
[14:0 Direction Control
Keypad I/O(GPIO
[24:15]) and GPIO
R/W
[14:0] Interrupt control
LCD Control
R/W
UART I/O Control
R/W
Value At
Reset
0x00
Function
Enable/Disable GPIO [14:0] Pull Up/Down
0x00
Select Pull Up/Down for Keypad I/O (GPIO [24:15]) and
GPIO [14:0]
0x00
0x00
0x00
0x00
0x00
Indicate Keypad I/O(GPIO [24:15]) and GPIO [14:0] pin
status
Select Keypad I/O(GPIO [24:15]) and GPIO [14:0]
Input/Output Direction
Enable/Disable Keypad I/O(GPIO [24:15]) and GPIO
[14:0] Interrupt
Enable/Disable LCD data, clock and chip selection
control.
Enable/Disable UART I/O control.
13
Rev1.2