w83601r Winbond Electronics Corp America, w83601r Datasheet - Page 11

• Manufacturer Part Number: w83601r
• Description: Winbond Smbus Gpi/o
• Manufacturer: Winbond Electronics Corp America

CR15 Power LED Configuration Register (Default 0x00, Read/Write)
Priority of LED function is highest.
Bit 7 : = 1, Enable LED function . 0, Disable LED funciton.
Bit 6-4 : LED frequency selection.
Bit 3 : = GP port selection.
Bit 2-0 : GP pin selection.
CR16-1F Reserved Register
CR20 (Chip ID High Byte, Read Only)
Bit 7-0 : = 0x60.
CR21 (Chip ID Low Byte, Read Only)
Bit 7-0 : = 0x12 (for W83601R).
NOTE: W83602R has no GP22-GP26. All the corresponding register has no effect on W83602R.
= 0x22 (for W83602R).
When LED function is enable, GP function is ignored despite of input or output.
= 111, LED pin is tri-state(OD pin) or drived high(O pin).
= 110, LED pin is a 1 Hz toggle pulse with 50 duty cycle.
= 101, LED pin is a 1/2 Hz toggle pulse with 50 duty cycle.
= 100, LED pin is a 1/4 Hz toggle pulse with 50 duty cycle.
= 000, LED pin is drived low.
0, Select GP port 1 as LED function if bit 7 is set to 1.
1, Select GP port 2 as LED function if bit 7 Is set to 1.
As W83602R, setting this bit 1 is meaningless.
=110-000, GP16-GP10 can be selected as LED output when bit 3 is 0.
=101-011, GP25-GP23 can be selected as LED output when bit 3 is 1.
As W83602R, only GP16-GP10 can be selected as LED output.
- 10 -
Publication Release Date: Aug. 1999
W83601R/602R
Preliminary
Revision 0.32