FB Top Register Map
943
SBAU337 – May 2020
Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
2.14.278 Register 5C0h (offset = 5C0h) [reset = 5h]
Figure 2-2161. Register 5C0h
7
6
5
4
3
2
1
0
FB_AGC_CLK_DIV_FACTOR_DVGA_CTRL[7:0]
R/W-5h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2175. Register 5C0 Field Descriptions
Bit
Field
Type
Reset
Description
7-0
FB_AGC_CLK_DIV
_FACTOR_DVGA_
CTRL[7:0]
R/W
5h
Clock divide factor for external DVGA control module.
This factor is used to derive the SPI clock when the device is
acting as a master to control external dvga settings. Should be
programmed such that the output clock is <25 MHz.
dvga_spi_clock = Fs/8/(clk_div_factor_dv1)
2.14.279 Register 5C1h (offset = 5C1h) [reset = 0h]
Figure 2-2162. Register 5C1h
7
6
5
4
3
2
1
0
FB_AGC_CLK_DIV_FACTOR_DVGA_CTRL[10:8]
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2176. Register 5C1 Field Descriptions
Bit
Field
Type
Reset
Description
2-0
FB_AGC_CLK_DIV
_FACTOR_DVGA_
CTRL[10:8]
R/W
0h
Clock divide factor for external DVGA control module.
This factor is used to derive the SPI clock when the device is
acting as a master to control external dvga settings. Should be
programmed such that the output clock is <25 MHz.
dvga_spi_clock = Fs/8/(clk_div_factor_dv1)
2.14.280 Register 5C2h (offset = 5C2h) [reset = 0h]
Figure 2-2163. Register 5C2h
7
6
5
4
3
2
1
0
FB_AGC_SWA
P_DVGA_SPI_
ORDER
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2177. Register 5C2 Field Descriptions
Bit
Field
Type
Reset
Description
0-0
FB_AGC_SWAP_D
VGA_SPI_ORDER
R/W
0h
Controls which channel information is sent on first 6 bits of
DVGA transaction. If low information is DVGA gain of RXCHA
followed by RXCHB. If made high DVGA gain of RXCHB
followed by RXCHA