ADNS-7700-HCMY Avago Technologies US Inc., ADNS-7700-HCMY Datasheet - Page 18

• Manufacturer Part Number: ADNS-7700-HCMY
• Description: USB SoC Lsr Snsr 5B+OTF+LED_T
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-7700-HCMY

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

0x4F: OTP_CTRL [1] = 1
OTP Byte Read Operation
OTP read operation flow chart is shown in Figure 17.
1. Set OTP enable bit in OTP_CONFIG register, 0x4C:
2. Write the OTP register address byte to OTP_ADDR
3. Set read enable bit in OTP_CTRL register, 0x4F to enable
Figure 17. OTP Byte Read Flow Chart
18
0x4E: OTP_DATA [7:0]
0x4F: OTP_CTRL [1]
OTP_EN = 1.
register, 0x4D.
write command to OTP: RD = 1.
No
Write OTP enable bit
Write OTP addr byte
Write OTP read bit
Read OTP read bit
Read OTP data
OTP read done
More bytes?
bit = 0?
Start
Done
Yes
No
Yes
0x4C: OTP_CONFIG [0] = 1
0x4D: OTP_ADDR [7:0]
4. Read the read enable bit status in OTP_CTRL register,
5. Read the OTP data byte from OTP_DATA register, 0x4E
6. Repeat Step 2 for more OTP read operations.
0x4F. If RD = 1, repeat reading the bit status until it is
clear.
to complete the OTP read operation.