F75113
8.2.56 LED2X Frequency Select Register ⎯ Index 3Eh
Bit
Name
R/W Default
Description
LED23 output frequency.
Bit
Description
00b
0.25Hz (default, duty cycle is 97.5%)
0.5Hz (duty cycle is 95%)
1 Hz (duty cycle is 90%)
7-6
LED23_FREQ
R/W
R/W
R/W
R/W
0
0
0
0
01b
10b
11b
2Hz (duty cycle is 80%)
LED22 output frequency.
Bit
Description
00b
0.25Hz (default, duty cycle is 97.5%)
0.5Hz (duty cycle is 95%)
1 Hz (duty cycle is 90%)
5-4
3-2
1-0
LED22_FREQ
LED21_FREQ
LED20_FREQ
01b
10b
11b
2Hz (duty cycle is 80%)
LED21 output frequency.
Bit
Description
00b
0.25Hz (default, duty cycle is 97.5%)
0.5Hz (duty cycle is 95%)
1 Hz (duty cycle is 90%)
01b
10b
11b
2Hz (duty cycle is 80%)
LED20 output frequency.
Bit
Description
00b
01b
10b
11b
0.25Hz (default, duty cycle is 97.5%)
0.5Hz (duty cycle is 95%)
1 Hz (duty cycle is 90%)
2Hz (duty cycle is 80%)
8.2.2 GPIO2X Low Level Input Enable Register ⎯ Index 3Fh
Bit
7
Name
R/W Default
Description
Enable GPIO27 low level input detection. (VIH > 0.9V, VIL <0.3V)
Enable GPIO26 low level input detection. (VIH > 0.9V, VIL <0.3V)
Enable GPIO25 low level input detection. (VIH > 0.9V, VIL <0.3V)
Enable GPIO24 low level input detection. (VIH > 0.9V, VIL <0.3V)
GP27_LVIN_EN R/W
GP26_LVIN_EN R/W
GP25_LVIN_EN R/W
GP24_LVIN_EN R/W
0
0
0
0
6
5
4
- 53 -
Dec,2011
V0.13P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
