Product Info

RTL8822CE RTL8822CU RTL8822CS COB TSSI MP FLOW
©2019 Realtek Semiconductor Corp.
17
Crystal calibration eFuse offset and notice :
The values must be well-calibrated and filled in the correct eFuse location.
Crystal Calibration
0xB9, 0x110, 0x111
Table 1: Crystal calibration offset in eFuse
1. 0xB9, 0x110, 0x111 should be the same value as each other.
2. For the situation of K-free flow ,the eFuse content may be loaded from an external file in
the system. These xtal-related-offset must be written in the HW eFuse even the
eFuse-content could be set from an external file.
3.1.5. Tx index calibration and thermal
The following flow will show the Tx index calibration flow, criterion, and sample
command.
3.1.5.1. Tx index location in eFuse
There are the Tx index for each channel group with PHY data rate.
The Tx index value and thermal value should be calibrated and updated to eFuse.
Tx index location in EFuse of Antenna A
Group 1
CH1 – CH2
Group 2
CH3 – CH5
Group 3
CH6 – CH8
Group 4
CH9 – CH11
Group 5
CH12 – CH13
Group 6
CH14
MCS7
B40
0x16[7:0]
0x17[7:0]
0x18[7:0]
0x19[7:0]
0x1A[7:0]
CCK
0x10[7:0]
0x11[7:0]
0x12[7:0]
0x13[7:0]
0x14[7:0]
0x15[7:0]
Group 7
CH36 – CH40
Group 8
CH44 – CH48
Group 9
CH52 – CH56
Group 10
CH60 – CH64
MCS7
B40
0x22[7:0]
0x23[7:0]
0x24[7:0]
0x25[7:0]
Group 11
CH100 –
CH104
Group 12
CH108 –
CH112
Group 13
CH116 –
CH120
Group 14
CH124 –
CH128
Group 15
CH132 –
CH136
Group 16
CH140 –
CH144
MCS7
B40
0x26[7:0]
0x27[7:0]
0x28[7:0]
0x29[7:0]
0x2A[7:0]
0x2B[7:0]
Group 17
CH149 –
CH153
Group 18
CH157 –
CH161
Group 19
CH165 –
CH169
Group 20
CH173 –
CH177
MCS7
B40
0x2C[7:0]
0x2D[7:0]
0x2E[7:0]
0x2F[7:0]