W83601R_06 Datasheet, PDF (11/21 Pages) Winbond – Winbond GPI/O IC

W83601R/G/W83602R/G
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.
When LED function is enabled, GP function is ignored despite of input or output.
Bit 6-4: LED frequency selection.
= 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.
Bit 3: GP port selection.
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/G, setting this bit 1 is meaningless.
Bit 2-0: GP pin selection.
=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/G, only GP16-GP10 can be selected as LED output.
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: = 0x13 (for W83601R/G).
= 0x23 (for W83602R/G).
NOTE: W83602R/G has no GP22-GP26. All the corresponding register has no effect on
W83602R/G.
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Publication Release Date: May 26, 2005
Revision 1.0