S.a.i, Programming reference – Motorola DSP56012 User Manual
Page 259
Programming Reference
MOTOROLA
DSP56012 User’s Manual
B-27
Application:
Date:
Programmer:
Sheet 1 of 4
S.A.I.
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
Receiver Control/Status
X:$FFE1
Reset = $0000
Register (RCS)
R0EN
R1EN
RMST
RWL0
*
RWL1
RLRS
RCKP
RDIR
*
0
RDWT
RXIE
RREL
RLDF
RRDF
R0EN
Description
0
Receiver 0 disabled
1
Receiver 0 enabled
R1EN
Description
0
Receiver 1 disabled
1
Receiver 1 enabled
RMST
Description
0
SAI slave
1
SAI master
RWL1 RWL0
Bits/Word
0
0
16
0
1
24
1
0
32
1
1
Reserved
RDIR
Description
0
Data shifted in MSB first
1
Data shifted in LSB first
RLRS
Description
0
WSR low identifies Left data word;
WSR high identifies Right data word
1
WSR high identifies Left data word;
WSR low identifies Right data word
RCKP
Description
0
Polarity is negative
1
Polarity is positive
RREL
Description
0
WSR occurs with first bit
1
WSR occurs 1 cycle earlier
RDWT Description
0
First twenty-four bits transferred
1
Last twenty-four bits transferred
RXIL
Description
0
Rx interrupt vector location at $1x
1
Rx interrupt vector location at $4x
RLDF
Description—Read Only Status Bit
0
Left data register empty
1
Left data register full
RRDF
Description—Read Only
0
Right data register empty
1
Right data register full
0
RXIE
Description
0
Receiver interrupts disabled
1
Receiver interrupts enabled
RXIL
*
= Reserved, write as 0
SAI Receiver Control/Status Register (RCS)