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PRELIMINARY
S3C6400X RISC MICROPROCESSOR
PCM AUDIO INTERFACE
37
-3
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
PCMSYNC
PCMSOUT
14
15
13
1
0
dont care
15
14
. . .
output
output
output
PCMSCLK
input
pcm_irq
(sync to DSP clk)
14
15
13
1
0
dont care
15
14
. . .
input
internal
PCMSIN
PCMCODEC_CLK
datain_reg_valid
Figure 37-1 PCM timing, POS_MSB_WR/RD = 0
Figure 37-2 shows a PCM transfer with the MSB configured one shift clock after the PCMSYNC. This MSB
positioning corresponds to setting the MSB_POS_WR and MSB_POS_RD bits in PCMCTL register to be HIGH.
PCMSYNC
PCMSOUT
15
14
1
0
dont care
15
. . .
output
output
output
PCMSCLK
input
pcm_irq
(sync to DSP clk)
15
14
1
0
dont care
15
. . .
input
internal
PCMSIN
PCMCODEC_CLK
datain_reg_valid
Figure 37-2 PCM timing, POS_MSB_WR/RD = 1