Register Map; Fig. 5.5.16 Status Data Register - Renesas 7200 Series User Manual

5.5 Example of I

5.5.7 Register map

The M52340SP has 2 kinds of registers; the status data register and the write data registers.
(1) Status data register
The status data register indicates various signal state from the M52340SP side. The state is confirmed
by regularly reading each bit.
Status data register
b7 b6 b5 b4 b3 b2 b1 b0

Fig. 5.5.16 Status data register

2
C-BUS control by software (M37220M3-XXXSP/FP)
Status data register
B Name
Color system determination bit 0
0
(CONDITION)
1 Color system determination bit 1
(SECAM)
Color system determination bit 2
2
(NTSC)
3 3.58/4.43 determination bit
(3.58)
4 AFT signal detection
bit 0 (AFT0)
5 AFT signal detection
bit 1 (AFT1)
6 Synchronous presence
determination bit (COINCIDENCE)
7 Frequency determination bit
(50/60)
7220 Group User's Manual
Functions
0 : Under determination
1 : Determination is completed
b2 b1 Image system
0 0 PAL
1 SECAM
0
1 0 NTSC
1 1 SECAM
0 : 4.43 MHz
1 : 3.58 MHz
-100kHz f +100kHz
0
D5: AFT1 1 1 0
D4: AFT0 1 0 0
0 : Without synchronization
1 : It is synchronization
0 : 50 Hz
1 : 60 Hz
APPLICATION
After reset R W
0 R —
0 R W
0 R W
0 R W
0 R W
0 R W
Freq.
0
1
0 R W
0 R W
5-39