w681308 Winbond Electronics Corp America, w681308 Datasheet - Page 15

• Manufacturer Part Number: w681308
• Description: Usb Audio Controller
• Manufacturer: Winbond Electronics Corp America

7.7
7.8
0x14A0
0x14A1
0x14A2
0x14A3
0x14A4~
0x14A8
0x14AB
0x14AC
0x14AD
0x14AE
0x14AF
Address
0x14B0
0x14B1
0x14B2~
0x14B3
0x14B4
0x14B5
0x14B6
0x14B7
0x14B8
0x14B9
0x14BA
Address
SPI Control Registers
W2S Control Registers
SPI
Interface
SPI
Interface Control
SPI Data Length
SPI Interrupt Control
SPI Command Byte
Control
SPI
Control
SPI FIFO Data
SPI Byte Count
SPI Write Count
SPI Read Count
W2S Enable
EEPROM control
W2S Clock
W2S R/W FIFO
W2S R/W Operation
Control
W2S Status
FIFO Read Pointer
FIFO Write Pointer
ACK Failure Detect
W2S
Control
Clock
Name
Clock
Name
Miscellaneous
Command
Format
and
Mode
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Mode
R/W
R/W
R/W
R/W
R/W
RW
RW
RW
RW
R
Value At
Value At
Reset
Reset
XXXX PRODUCT DESCRIPTION
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
15
Function
Enable/Disable SPI interface and Select SPI bit clock
rate
Set SPI interface command length, R/W and other
control
Set SPI interface data field length
Enable/Disable SPI interface interrupt
Set SPI interface command byte 1 to 5
Set SPI interface clock format
Read/write data from SPI interface FIFO
Current SPI interface FIFO counter value
MCU current Write point for SPI interface FIFO
MCU current Read point for SPI interface FIFO
Function
Enable/Disable W2S bus controller
Set different page mode and page size of EEPROM
Set W2S bit clock rate
Read/Write W2S compatible device
Set W2S Read/Write and FIFO control
Indicate W2S FIFO space and ACK signal status
Indicate W2S FIFO read pointer
Indicate W2S FIFO write pointer
Set ACK failure detect and indicate failure data pointer
in FIFO
Indicate status for SCL_in, finite state machine state
and interrupt signal status
W681308
Rev1.2