W681307DG Datasheet, PDF (144/160 Pages) Winbond – USB1.1 CODEC Microprocessor Control Unit with 32KB Mask ROM and 4KB RAM.

W681307
17.2.8
FIFORdPtr
Address
0x1747
Access Mode Value At Reset Nominal Value
R
0x00
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RESERVED RESERVED
FIFORdPtr
This register is used to monitor W2S FIFO read pointer.
17.2.9
FIFOWrPtr
Address
0x1748
Access Mode Value At Reset Nominal Value
R
0x00
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RESERVED RESERVED
FIFOWrPtr
This register is used to monitor W2S FIFO write pointer.
17.2.10
ForceAckFail
Address
0x1749
Access Mode Value At Reset Nominal Value
R/W
0x00
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
AckFailEna RESERVED
AckFailPtr
AckFailEna: Enable Ack Fail Event
AckFailPtr: During write data to EEPROM or Melody devices, the Ack Fail event will occur at the AckFailPtr-th data of W2S FIFO
content.
17.2.11
W2S_Misc
Address
0x174A
Access Mode Value At Reset Nominal Value
R
0x00
Bit 7
Bit 6
Bit 5
RESERVED RESERVED RESERVED
Bit 4
SCL_in
Bit 3
Bit 2
Bit 1
Bit 0
C_STATE
W2SIntrpt
This register only monitor several status.
SCL_in: 0: current SCL_in is pull low, 1: current SCL_in pull high.
C_STATE: current finite state machine state.
W2SIntrpt: current interrupt signal indication.
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Publication Release Date: May, 2007
Revision 1.3