Texas Instruments DRA76xP-ACD, Руководство пользователя, Страница: 27 / 38

SoC
Mux
D
B1
B2
LI Camera
Connector
Expansion
Connector
VIN2A_CLK, _VS, _HS, _DE,
_D [11:0]
A1=B2 or A1=B3
A1
VIN2A
VIN2A_CLK, _VS, _HS, _DE, _D[11:0]
B3
VIN2A
VIN2A_CLK, _VS, _HS, _DE, _D[11:0]
SN74CBT16214
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Signal Multiplex Logic
27 SPRUII5A – December 2017 – Revised November 2018
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Copyright © 2017–2018, Texas Instruments Incorporated
DRA77xP/DRA76xP-ACD CPU EVM Board
4.4 VIN2A Selection (Mux D)
Table 19 is part of the SoC pinmux table for VIN2A. The SoC device supports additional functions not
shown in the table. The functions shown are intended to reflect those supported on the EVM. These
include:
• Video Input Port (VIN2A): D[11:0], CLK, DE, HSYNC, VSYNC
Table 19. SoC Pinmux for VIN2A
Pad Name Function 1
vin2a_d[0] VIP1 vin2a_d[0]
vin2a_d[1] VIP1 vin2a_d[1]
vin2a_d[2] VIP1 vin2a_d[2]
vin2a_d[3] VIP1 vin2a_d[3]
vin2a_d[4] VIP1 vin2a_d[4]
vin2a_d[5] VIP1 vin2a_d[5]
vin2a_d[6] VIP1 vin2a_d[6]
vin2a_d[7] VIP1 vin2a_d[7]
vin2a_d[8] VIP1 vin2a_d[8]
vin2a_d[9] VIP1 vin2a_d[9]
vin2a_d[10] VIP1 vin2a_d[10]
vin2a_d[11] VIP1 vin2a_d[11]
vin2a_clk0 VIP1 vin2a_clk0
vin2a_de0 VIP1 vin2a_de0
vin2a_hsync0 VIP1 vin2a_hsync0
vin2a_vsync0 VIP1 vin2a_vsync0
Mux D: Selects between VIN2A to LI Camera or Expansion. Mux H and I are combined to support both
selections. The selection is made using the IO expander #3, bits P6 and P2, with the default set to
Expansion.
Figure 10. Mux Diagram for VIN2A