User Manual

VS1003

10 VS1003 REGISTERS

10.14.3 DataBytes(), 0x6

VS_DSP C prototype:

u_int16 DataBytes(void);

If the user has taken over the normal operation of the system by switching the pointer in User-

Codec to point to his own code, he may read data from the Data Interface through this and the

following two functions.

This function returns the number of data bytes that can be read.

10.14.4 GetDataByte(), 0x8

VS_DSP C prototype:

u_int16 GetDataByte(void);

Reads and returns one data byte from the Data Interface. This function will wait until there is

enough data in the input buffer.

10.14.5 GetDataWords(), 0xa

VS_DSP C prototype:

void GetDataWords(register __i0 __y u_int16 *d, register __a0 u_int16 n);

Read n data byte pairs and copy them in big-endian format (ﬁrst byte to MSBs) to d. This

function will wait until there is enough data in the input buffer.

10.14.6 Reboot(), 0xc

VS_DSP C prototype:

void Reboot(void);

Causes a software reboot, i.e. jump to the standard ﬁrmware without reinitializing the IRAM

vectors.

This is NOT the same as the software reset function, which causes complete initialization.

Version: 1.08, 2014-12-19 59