Texas Instruments AM18x eXperimenter's Kit TMDSEXP1808L TMDSEXP1808L 데이터 시트
제품 코드
TMDSEXP1808L
Receive Logic
C lo ck /F ra m e G e n e ra to r
State Machine
Clock Check and
Serializer 0
Serializer 1
Serializer y
GIO
Control
DIT RAM
384 C
384 U
384 U
Optional
Tra n s m it
F o rm a tte r
Receive
F o rm a tte r
Tra n s m it L o g ic
C lo ck /F ra m e G e n e ra to r
State Machine
McASP
Peripheral
Configuration
Bus
McASP
DMA Bus
(Dedicated)
AHCLKRx
ACLKRx
AFSRx
AMUTEINx
AMUTEx
AFSXx
ACLKXx
AHCLKXx
AXRx[0]
AXRx[1]
AXRx[y]
Pins
Function
Receive Master Clock
Receive Bit Clock
R e c e iv e L e ft/R ig h t C lo ck o r F ra m e S y n c
Tra n s m it M a s te r C lo ck
Tra n s m it B it C lo ck
Tra n s m it L e ft/R ig h t C lo ck o r F ra m e S y n c
Tra n s m it/R e c e iv e S e ria l D a ta P in
Tra n s m it/R e c e iv e S e ria l D a ta P in
Tra n s m it/R e c e iv e S e ria l D a ta P in
Error Detection
The McASP DOES NOT have a
dedicated AMUTEIN pin.
SPRS653E – FEBRUARY 2010 – REVISED MARCH 2014
6.15 Multichannel Audio Serial Port (McASP)
The McASP serial port is specifically designed for multichannel audio applications. Its key features are:
•
Flexible clock and frame sync generation logic and on-chip dividers
•
Up to sixteen transmit or receive data pins and serializers
•
Large number of serial data format options, including:
–
–
TDM Frames with 2 to 32 time slots per frame (periodic) or 1 slot per frame (burst)
–
Time slots of 8,12,16, 20, 24, 28, and 32 bits
–
First bit delay 0, 1, or 2 clocks
–
MSB or LSB first bit order
–
Left- or right-aligned data words within time slots
•
DIT Mode with 384-bit Channel Status and 384-bit User Data registers
•
Extensive error checking and mute generation logic
•
All unused pins GPIO-capable
•
Transmit & Receive FIFO Buffers allow the McASP to operate at a higher sample rate by making it
more tolerant to DMA latency.
more tolerant to DMA latency.
•
Dynamic Adjustment of Clock Dividers
–
–
Clock Divider Value may be changed without resetting the McASP
Figure 6-29. McASP Block Diagram
Copyright © 2010–2014, Texas Instruments Incorporated
Peripheral Information and Electrical Specifications
133
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