w83l950d Winbond Electronics Corp America, w83l950d Datasheet - Page 92
w83l950d
Manufacturer Part Number
w83l950d
Description
Peripheral Personal Computer Keyboard Controller
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83L950D.pdf
(105 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- Current page: 92 of 105
- Download datasheet (686Kb)
22.2 Auxiliary SMBus Host Control Register (AHCR)
7
6:4
3
2
1
0
Advanced SFR Address 0x29
Default Value
Attribute:
Bit
Reserved.
Baud Rate Select (BAUDRATE). Select SMBus clock baud rate.
This clock is based on Xin or PLL input frequency.
Note: The baud rate of both Master and Slave mode are settled in same bits. When
Enable SMBus Device (EN_SMBUS). Set 1, enable SMBus device.
LAST_BYTE. This bit is used for Host Continue Read Mode.
1 = Software sets this bit to indicate that the next byte will be the last byte to be received
for the data stream. The SMBus controller will send a NOT ACK (instead of an ACK) after
receiving the last byte. Write 0 to disable this function until the last byte is received or
wait the bit of package end status be set to 1.
Host Continue Read Mode (H_CONTRD). This bit is used to determine the control
method for NOT ACK generation when operated on Master-receive mode.
0 = The SMBus controller determines the expected number of data byte for host read by
setting the AH_RBC (Advanced SFR address 2Ah) before a transaction start-off.
1 = The firmware determines when to generate NOT ACK by setting the bit 2
(LAST_BYTE) to 1, in front of the coming last byte.
KILL SMBus (KILL).Set this bit to 1, the data FIFO and SMBus controller device will be
reset and also invoke the bit 4 (FAIL) of HSR set.
Once this bit set, must be cleared to allow the SMBus Host Controller to function
normally.
Note: It is suggested to user don’t reset SMBus via setting this bit.
Set bit 0 of ASCR (Advanced SFR address 033h) is recommended.
operated on Slave mode and deal with a different speed device, the user may resetting
this baud rate for Slave transaction.
BAUDRATE
000
001
010
011
100
101
110
111
Read/Write
0x80
Clock (if 8MHz)
<10K Reserved.
12.5KHz
25KHz
50KHz
200KHz
400KHz
Reserved.
Reserved.
Description
- 83 -
12.5K Hz
25K Hz
50K Hz
100K Hz (Default)
400K Hz
800K Hz
Reserved
Reserved
Clock (if 16MHz)
Publication Release Date: June 23, 2003
W83L950D
Revision 1.0
Related parts for w83l950d
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Winbond H/w Monitoring Ic
Manufacturer:
Winbond Electronics Corp America
Datasheet:
Part Number:
Description:
Winbond Lpc I/o
Manufacturer:
Winbond Electronics Corp America
Datasheet:
Part Number:
Description:
Winbond Smbus Gpi/o
Manufacturer:
Winbond Electronics Corp America
Datasheet:
Part Number:
Description:
Winbond I/o
Manufacturer:
Winbond Electronics Corp America
Datasheet:
Part Number:
Description:
Winbond Clock Generator For Intel P4 Springdale Series Chipset
Manufacturer:
Winbond Electronics Corp America
Datasheet:
Part Number:
Description:
Winbond Clock Generator For Intel P4 Springdale Series Chipset
Manufacturer:
Winbond Electronics Corp America
Datasheet:
Part Number:
Description:
Winbond Clock Generator For Intel P4 Springdale Series Chipset P4 Springdale Series Chipset
Manufacturer:
Winbond Electronics Corp America
Datasheet:
Part Number:
Description:
Winbond Clock Generator For Intel P4 845 Series Chipset
Manufacturer:
Winbond Electronics Corp America
Datasheet:
Part Number:
Description:
Winbond Clock Generator For Via P4/kt Series Chipset
Manufacturer:
Winbond Electronics Corp America
Datasheet:
Part Number:
Description:
Winbond Clock Generator For Intel 915/925 Chipsets
Manufacturer:
Winbond Electronics Corp America
Datasheet:
Part Number:
Description:
Winbond H/w Monitoring Ic
Manufacturer:
Winbond Electronics Corp America
Datasheet:
Part Number:
Description:
Winbond Lpc I/o
Manufacturer:
Winbond Electronics Corp America
Datasheet:
Part Number:
Description:
Winbond Smbus Gpi/o
Manufacturer:
Winbond Electronics Corp America
Datasheet:
Part Number:
Description:
Winbond I/o
Manufacturer:
Winbond Electronics Corp America
Datasheet:
Part Number:
Description:
Pa-risc Embedded Controller
Manufacturer:
Winbond Electronics Corp America
Datasheet: