Datasheet

3–7

D0D13D15 D14 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1

SCLK

DCSI

Start Bit

= 0

Device

Address

= 1

Figure 3–9. Direct Configuration Mode Timing

To program control register 1 of device 3, send data in with the following format through DCSI:

SB Device Address Register Address X Register Content

0 0 1 1 0 0 1 x x x x x x x x x

D15 D0

3.4 Continuous Data Transfer Mode

In continuous data transfer mode, the 16-bit converter data are transferred contiguously with no inactivity between

bits. This mode is available in the stand-alone master with M1M0 = 00 (FS-pulse mode) and selected by setting bit

D5 of control register 3 to 1. The secondary communication request is not allowed in this mode and therefore the direct

configuration mode should be used to program the internal control registers. The continuous data transfer mode is

designed to support the TI DSP McBSPs autobuffering unit (ABU) operation in which serial port interrupts are not

generated with each word transferred to prevent CPUs ISR overheads.

D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

SCLK

DIN

DOUT

E15 E13 E12

E15 E14 E13 E12

E14C0

Figure 3–10. Continuous Data Transfer Mode Timing