Motorola DSP56012 - 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)