Digital Audio Transmitter Timing
HCKR
463
SCKR (output)
465
Figure 3-35 ESAI HCKR Timing
3.15 Digital Audio Transmitter Timing
Table 3-20 Digital Audio Transmitter Timing
150 MHz
No.
Characteristic
Expression
Unit
Min
—
Max
75
ACI frequency1
1 / (2 x TC)
2 × TC
MHz
ns
220
221
222
223
ACI period
13.4
3.4
3.4
—
—
ACI high duration
ACI low duration
0.5 × TC
0.5 × TC
1.5 × TC
—
ns
—
ns
ACI rising edge to ADO valid
10.0
ns
1
In order to assure proper operation of the DAX, the ACI frequency should be less than 1/2 of the DSP56367 internal
clock frequency. For example, if the DSP56367 is running at 150 MHz internally, the ACI frequency should be less
than 75 MHz.
ACI
220
221
222
223
ADO
AA1280
Figure 3-36 Digital Audio Transmitter Timing
DSP56367 Technical Data, Rev. 2.1
3-50
Freescale Semiconductor
FREESCALE [ Freescale ]
