STMPE1601 STMicroelectronics, STMPE1601 Datasheet - Page 37

• Manufacturer Part Number: STMPE1601
• Description: 16-bit Enhanced Port Expander With Keypad And Pwm Controller Xpander Logic
• Manufacturer: STMicroelectronics

STMPE1601
PWM_n_SET n=0-3
Address:
Type:
Reset:
Description:
R/W
7
0
[7:4] BRIGTHNESS:
R/W
6
0
0x50, 0x54, 0x58, 0x5C
RW
0x00
PWM blinking control
Duty cycle of PWM output during period 0
0000: duty cycle ratio 1:15 ( 6.25%, minimum brightness)
0001: duty cycle ratio 2:14 (12.50%)
0010: duty cycle ratio 3:13 (18.75%)
0011: duty cycle ratio 4:12 (25.00%)
0100: duty cycle ratio 5:11 (31.25%)
0101: duty cycle ratio 6:10 (37.50%)
0110: duty cycle ratio 7: 9 (43.75%)
0111: duty cycle ratio 8: 8 (50.00%)
1000: duty cycle ratio 9: 7 (56.25%)
1001: duty cycle ratio 10: 6 (62.50%)
1010: duty cycle ratio 11: 5 (68.75%)
1011: duty cycle ratio 12: 4 (75.00%)
1100: duty cycle ratio 13: 3 (81.25%)
1101: duty cycle ratio 14: 2 (87.50%)
1110: duty cycle ratio 15: 1 (93.75%)
1111: duty cycle ratio 16: 0 (100.00%, maximum brightness)
Brightness
R/W
5
0
PWM_n_Setup n=0-3
R/W
4
0
R/W
3
0
R/W
2
0
Timing
Basic PWM controller
R/W
1
0
R/W
0
0
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