Texas Instruments DRA76xP-ACD, Руководство пользователя, Страница: 29 / 38

SoC
Mux
H
B1
B2
COMQ8
Connector
Expansion
Audio Codec
A1
McASP3/7
McASP3_ACLKX,_FSX,_AXR[1:0]Mc
ASP7_FSX, ACLKX, AXR[1:0]
McASP7
McASP7_FSX, ACLKX, AXR[1:0]
McASP3 ACLKX, FSX, AXR[1:0],
McASP7 FSX, _ACLKX,
McASP7_AXR[1:0]
McASP3
McASP3_ACLKX, _FSX, _AXR[1:0]
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Signal Multiplex Logic
29 SPRUII5A – December 2017 – Revised November 2018
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Copyright © 2017–2018, Texas Instruments Incorporated
DRA77xP/DRA76xP-ACD CPU EVM Board
4.6 McASP Selection (Mux H)
Table 21 is part of the SoC pinmux table for McASP to AIC3106/COMQ8 or Expansion. 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:
• Audio Serial Port (McASP3): McASP3 ACLKX, FSX, AXR[1:0]
• Audio Serial Port (McASP7): McASP7 FSX, ACLKX, AXR[1:0]
Table 21. SoC Pinmux for McASP
Pad Name Function 1 Function 2
mcasp3_aclkx MCASP3 mcasp3_aclkx
mcasp3_fsx MCASP3 mcasp3_fsx
mcasp3_axr[0] MCASP3 mcasp3_axr[0]
mcasp3_axr[1] MCASP3 mcasp3_axr[1]
mcasp2_aclkx
mcasp1_axr[15] MCASP7 mcasp7_fsx
mcasp1_axr[14] MCASP7 mcasp7_aclkx
mcasp1_axr[13] MCASP7 mcasp7_axr[1]
mcasp1_axr[12] MCASP7 mcasp7_axr[0]
Mux H: Selects between AIC/COMQ8-BT and Expansion support. The selection is made using the IO
expander #3, bits P1, defaulting to Expansion.
Figure 12. Mux Diagram for McASP3/7