PCM1608 datasheet(19/46 Pages) TI2

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INC = 1 (Auto-Increment Read)

INDEX “N”

High Impedance

MDI

MDO

INDEX “Y”

High Impedance

MDI

MDO

INDEX “N + 1”

INC = 0 (Single-Register Read)

INDEX “N”

High Impedance

MDI

MDO

T0075-01

AUTO-INCREMENT READ OPERATION

PCM1608

SBAS164B – DECEMBER 2000 – REVISED JULY 2005

NOTES: X = Don’t care

Y = Last register to be read

In single-register read (INC = 0), the index which indicates the resister to be read in read operation can be set by

REG[6:0] in register 11. For example, setting REG[6:0] = 000 1001b means reading from register 9.

In auto-increment read (INC = 1), the index REG[6:0] indicates the first register to be read. For example, setting

REG[6:0] = 000 1001b means reading registers from 9 to Y. Y is determined by the low-to-high transition of ML in

serial mode control.

Figure 26. Read Operation Timing

The auto-increment read function allows for multiple registers to be read sequentially. The auto-increment read

function is enabled by setting the INC bit of control register 11 to 1. The sequence always starts with the register

indexed by the REG[6:0] bits in control register 11, and ends by the ML setting to 1 after MC clock cycle for the

least-significant bit of last register.

PCM1608 Datasheet(PDF) 19 Page - Texas Instruments