TC9496AF Datasheet, PDF (31/48 Pages) Toshiba Semiconductor – 1 Chip Audio Digital Signal Processor

TC9496AF
Command-56h (0101 0110): MON-SR
OOOOOOOOOOOOOO
23 22 21 20 19 18 17 16 15 14 13 12 11 10 ^{O9 O8 O7 O6 O5 O4 O3 O2 O1 O0}
0
0
0
0
0
0
0
0
0
LRF
GF
3
GF
2
GF
1
GF LI LG
0 -LG -LI
OV OV
-1E -0E
RD
-23
RD
-16
V1F
V0F
ZF
SF
Bit
Name
Description
O23
to
¾
Fixed to 0 (zero)
O15
O14
SR monitor
to
SR
O0
(status register)
Value
¾
Operation
¾
¾ Reads SR on the condition: Command-4Bh, 4Ch
Command-58h (0101 1000): DF-ATT
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
0
0
0
0
0
0
0
0
0 ATL6 ATL5 ATL4 ATL3 ATL2 ATL1 ATL0
Bit
Name
Description
D6
ATL
to
DF attenuator value
D0
[6:0]
Value
Operation
Initial value: 7Fh (level = 0dB)
LEVEL = 20 ´ log (ATL/128)
00h
to
7Fh*
Code
7Fh
7Eh
7Dh
~
72h
65h
5Ah
~
40h
~
02h
01h
00h
Level
0.00dB
-0.14dB
-0.21dB
~
-1.01dB
-2.06dB
-3.06dB
~
-6.02dB
~
-36.12dB
-42.14dB
-Â¥dB
31
2002-01-11