User Manual

DS625F5 23

CS5364

4.5.2 TDM Format

In TDM Mode, all four channels of audio data are serially clocked out during a single Frame Sync (FS) cy-

cle, as shown in Figure 12. The rising edge of FS signifies the start of a new TDM frame cycle. Each chan-

nel 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 Timing” sec-

tion on page 16. The TDM data output port resides on the SDOUT1 pin. The TDM

output pin is compli-

mentary TDM data. All SDOUT pins will remain active during TDM Mode. Refer to Section 4.11 “Optimizing

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

CS5364 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

SCLK

LSBMSB LSBMSB LSBMSB

TDM OUT

Channel 1 Channel 4Channel 2 Channel 3

32 clks 32 clks 32 clks 32 clks 32 clks 32 clks

32 clks 32 clks

LSB LSBMSB

LSBMSB

Data

Zeroes