ADNS-7700-HMMY Avago Technologies US Inc., ADNS-7700-HMMY Datasheet - Page 18
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ADNS-7700-HMMY
Manufacturer Part Number
ADNS-7700-HMMY
Description
USB SoC Lsr Snsr 5B+TW+OTF+KM
Manufacturer
Avago Technologies US Inc.
Datasheet
1.ADNS-7700-H4MY.pdf
(60 pages)
Specifications of ADNS-7700-HMMY
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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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.
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