Owner's manual

DS624F5 23
CS5368
4.5.2 TDM Format
In TDM Mode, all eight channels of audio data are serially clocked out during a single Frame Sync (FS)
cycle, as shown in Figure 12. The rising edge of FS signifies the start of a new TDM frame cycle. Each
channel slot occupies 32 SCLK cycles, with the data left justified and with MSB first. TDM output data
should be latched on the rising edge of SCLK within time specified under ”Serial Audio Interface - TDM Tim-
ing” section on page 16. The TDM data output port resides on the SDOUT1 pin. The TDM
output pin is
complimentary TDM data. All SDOUT pins will remain active during TDM Mode. Refer to Section 4.11 “Op-
timizing Performance in TDM Mode” on page 29 for critical system design information.
Figure 12. TDM Format
4.5.3 Configuring Serial Audio Interface Format
The serial audio interface format of the data is controlled by the configuration of the DIF1 and DIF0 pins in
Stand-Alone Mode or by the DIF[1] and DIF[0] bits in the Global Mode Control Register in Control Port
Mode, as shown in Table 2.
Table 2. DIF1 and DIF0 Pin Settings
4.6 Speed Modes
4.6.1 Sample Rate Ranges
CS5368 supports sampling rates from 2 kHz to 21 kHz, divided into three ranges: 2 kHz - 54 kHz, 54 kHz -
108 kHz, and 108 kHz - 216 kHz. These sampling speed modes are called Single-Speed Mode (SSM),
Double-Speed Mode (DSM), and Quad-Speed Mode (QSM), respectively.
4.6.2 Using M1 and M0 to Set Sampling Parameters
The Master/Slave operation and the sample rate range are controlled through the settings of the M1 and
M0 pins in Stand-Alone Mode, or by the M[1] and M[0] bits in the Global Mode Control Register in Control
Port Mode, as shown in Table 3.
Table 3. M1 and M0 Settings
DIF1 DIF0 Mode
0 0 Left-Justified
01 I²S
10 TDM
11 Reserved
M1 M0 Mode Frequency Range
0 0 Single-Speed Master Mode (SSM) 2 kHz - 54 kHz
0 1 Double-Speed Master Mode (DSM) 54 kHz - 108 kHz
1 0 Quadruple-Speed Master Mode (QSM) 108 kHz - 216 kHz
1 1 Auto-Detected Speed Slave Mode 2 kHz - 216 kHz
Channel 6
SCLK
MSB LSBMSB LSBMSB LSBMSB LSBMSB LSBMSB
TDM OUT
Channel 1 Channel 4Channel 2 Channel 5Channel 3
32 clks 32 clks 32 clks 32 clks 32 clks 32 clks
Channel 8
LSBMSB LSBMSB
Channel 7
32 clks 32 clks
FS
MSB
LSB
LSB
LSBMSB
Data
Zeroes