U2739M-BFC ATMEL [ATMEL Corporation], U2739M-BFC Datasheet - Page 63

• Manufacturer Part Number: U2739M-BFC
• Description: DAB One-Chip Channel- and Source Decoder
• Manufacturer: ATMEL [ATMEL Corporation]

8.4.7
Command Overview:
Command Parameters:
Rev. A1, 22-May-01
FIBNUM
FIBm
Parameter
7
0
7
0
Read FIC Data
DAB
DAB
6
1
6
1
FIB number n
FIB byte m
Meaning
5
1
7
1
5
1
7
Address Mode
Address Mode
4
0
6
0
4
0
6
Possible FIB numbers DAB mode dependent:
Each FIB consists of 32 bytes. The order of the FIB bytes and bits corresponds
to the serial FIC processing. That means:
(1) Byte order:
The first 8 output bits after FIC processing represent FIB byte 0 of FIB num-
ber 0, the next ones FIB byte 1 of FIB number 0 and so on.
(2) Bit order:
The FIB bytes are given out MSB first. The first outgoing bit represents bit 7
of the corresponding byte, the next one bit 6 and so on. The FIB bits are num-
bered from bit 0 (MSB of FIB0) up to bit 255 (LSB of FIB31).
NOTE:
The last 2 bytes of an FIB represent the result of the U2739M internal CRC
check. That means, if these bytes are $00 both, the internal CRC check was
successful and the FIB data bytes are correct.
U2739M-B
U2739M-B
0..11 (DAB mode 1)
0..2
0..3
0..5
3
1
5
0
3
1
5
(DAB mode 2)
(DAB mode 3)
(DAB mode 4)
Data Mode
Data Mode
2
1
4
1
2
1
4
FIB31
FIB0
D Get FIB bytes
...
Write Command
Write Command
1
1
3
1
0
3
Description
0
1
2
0
1
2
FIBNUM
1
1
U2739M-B
0
0
Command
sequence:
63 (69)
$XX
$XX
$9X
$6D
$6F