2004 Mar 16
179
Philips Semiconductors
Product specification
PC-CODEC
SAA7108E; SAA7109E
18.2.5.4
Subaddress 8FH
Table 207
Status information scaler part; 8FH[7:0]; read only register
Note
1.
Status information is unsynchronized and shows the actual status at the time of I
2
C-bus read.
18.2.5.5
Subaddresses 90H and C0H
Table 208
Task handing control; register set A [90H[7:6]] and B [C0H[7:6]]; note 1
Note
1.
X = don’t care.
Table 209
Task handling control; register set A [90H[5:3]] and B [C0H[5:3]]
BIT
I
2
C-BUS
STATUS BIT
FUNCTION
(1)
7
XTRI
status on input pin XTRI, if not used for 3-state control, usable as hardware flag for software
use
status on input pin ITRI, if not used for 3-state control, usable as hardware flag for software
use
status of the internal ‘FIFO almost filled’ flag
status of the internal ‘FIFO overflow’ flag
copy of bit DPROG, can be used to detect power-up and start-up fails
error flag of scalers output formatter, normally set, if the output processing needs to be
interrupted, due to input/output data rate conflicts, e.g. if output data rate is much too low and
all internal FIFO capacity used
status of the field sequence ID at the scalers input
status of the field sequence ID at the scalers output, scaler processing dependent
6
ITRI
5
4
3
2
FFIL
FFOV
PRDON
ERROF
1
0
FIDSCI
FIDSCO
EVENT HANDLER CONTROL
CONTROL BITS 7 AND 6
CONLH
OFIDC
Output field ID is field ID from scaler input
Output field ID is task status flag, which changes every time an selected task
is activated (not synchronized to input field ID)
Scaler SAV/EAV byte bit 7 and task flag = 1, default
Scaler SAV/EAV byte bit 7 and task flag = 0
X
X
0
1
0
1
X
X
EVENT HANDLER CONTROL
CONTROL BITS 5 TO 3
FSKP2
FSKP1
FSKP0
Active task is carried out directly
1 field is skipped before active task is carried out
... fields are skipped before active task is carried out
6 fields are skipped before active task is carried out
7 fields are skipped before active task is carried out
0
0
...
1
1
0
0
...
1
1
0
1
...
0
1