CCB Input Data Format
Caution: The bits labeled with an asterisk must be set to 0.
(1) Synchronization protection (forward protection) method setting (4 bits): FS0 to FS3
FS3 = 0: If offset words in the correct order could not be detected continuously during the number of blocks specified
by FS0 to FS2, take that to be a lost synchronization state.
FS3 = 1: If blocks with uncorrectable errors were received consecutively during the number of blocks specified by
FS0 to FS2, take that to be a lost synchronization state.
No. 6488-7/14
LC72720Y, 72720YV
Initial value: FS0 = 0, FS1 = 1, FS2 = 0, FS3 = 0
Initial value: BS = 0
FFF
S
Condition for detecting lost synchronization
012
0
If 3 consecutive blocks matching the FS3 condition are received.
1
0
If 4 consecutive blocks matching the FS3 condition are received.
0
1
0
If 5 consecutive blocks matching the FS3 condition are received.
1
0
If 6 consecutive blocks matching the FS3 condition are received.
0
1
If 8 consecutive blocks matching the FS3 condition are received.
1
0
1
If 10 consecutive blocks matching the FS3 condition are received.
0
1
If 12 consecutive blocks matching the FS3 condition are received.
1
If 16 consecutive blocks matching the FS3 condition are received.
(2) Synchronization detection method setting (1 bit): BS
BS
Synchronization detection conditions
0
If during 3 blocks, 2 blocks of offset words were detected in the correct order.
1
If the offset words were detected in the correct order in 2 consecutive blocks.
DI
A13208
0
B0
1
B1
0
B2
1
B3
0
A0
1
A1
1
A2
0
A3
FS0FS1FS2FS3 BS SYR
*
** *
*
**
OWEEC0 EC1 EC2
EC3 EC4 CT0
DI
A13209
1
B0
1
B1
0
B2
1
B3
0
A0
1
A1
1
A2
0
A3
CT1
XS PL0 PL1 RM PT0 PT1 PT2
TS0 TS1 TS2 TS3
[1] CCB address 6A
[2] CCB address 6B
IN1 data, first bit
IN2 data, first bit
(11) Circuit control
(5) Error correction method setting
(4) RAM write control
(3) Synchronization and RAM address reset
(2) Synchronization detection method setting
(1) Synchronization protection method setting
(10) Test mode settings
(9) Output pin settings
(8) RDS/RBDS selection
(7) Demodulation circuit phase control
(6) Crystal oscillator frequency selection
(11) Circuit control