THine THCV245 A, Руководство пользователя

Страница: 22 / 67

Preliminary
THCV245A_Rev.0.90_E
Copyright©2020 THine Electronics, Inc. THine Electronics, Inc.
Security C
22/67
6.8 PLL Auto setting function
PLL auto setting function is available in case all the following conditions are met.

V-by-One® HS output format setting (Address 0x1001) is MPRF.

F(CKI) is 37.125MHz or 27MHz or 24MHz.

MIPI input data-rate is equal to the integral multiple of F(CKI)
Under PLL auto setting function operation, it is sufficient only to control below resistors. No control on
R_PLL_SETTING[47:0] is required.
Table 19. PLL Auto setting function control Resistors
If above PLL Auto setting control values are invalid and unmatched to application condition, C_PLL_SET_NG
indicator is asserted.
Table 20. PLL Auto setting control invalid Indicator
Addr(h) Bits Register w idth R/W Description Default
0x100F [0] R_PLL_SET_MODE 1 R/W
PLL setting mode
0:PLL Auto setting mode
1:PLL Manual setting mode
1'h0
0x100E [7:6] R_CKI_FREQ 2 R/W
PLL Auto setting input f requency choice
2'h0: Reserved
2'h1: 37.125MHz
2'h2: 27MHz
2'h3: 24MHz
2'h0
0x100E [5:0] R_MIPI_MULT 6 R/W
PLL Auto setting multiplying ratio MIPI data-rate vs. F(CKI)
Below f ormula must be met to application condition.
MIPI Data-rate = F(CKI) *(R_MI1)
6'hF
0x1000 [0] R_VX1_LANE 1 R/W See other Table for detail description 1'h1
0x1001 [6:4] R_OUTPUT_FMT 3 R/W
Setting value 000:MPRF is required f or PLL Auto setting function.
See other Table for detail description
3'h0
0x1002 [5] R_HFSEL 1 R/W See other Table for detail description 1'h0
0x102D [1:0] R_RX_LANE_SEL_EN 2 R/W See other Table for detail description 2'h3
Addr(h) Bits Register w idth R/W Description Def ault
0x112F [0] C_PLL_SET_NG 1 R
PLL Auto Setting control invalid indicator
0: PLL Auto Setting control valid or PLL Manual setting mode
1: PLL Auto Setting control invalid
-