TC9496AF Datasheet, PDF (25/48 Pages) Toshiba Semiconductor – 1 Chip Audio Digital Signal Processor

TC9496AF
Command-46h (0100 0110): CRAM
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
0
0
0
0
0
0
CRAMA CRAMA CRAMA CRAMA CRAMA CRAMA CRAMA CRAMA CRAMA CRAMA
9
8
7
6
5
4
3
2
1
0
Bit
Name
Description
Value
Operation
D9
to
D0
CRAMA
[9:0]
CRAM (coefficient RAM) head
address
000h
to
1BFh
CRAM address of the head at the time of writing in by 46h
command is set up.
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit
Name
Description
D15
CRAMD
to
CRAM data
D0
[15:0]
Value
Operation
7FFFh
to Set CRAM data (two-complement-form formula)
8000h
The data written in continuously are sent after transmitting CRAM head address (2 bytes).
Enable a sequential write to RAM.
46h-CRAM address (2 bytes)-Data (2 bytes)-Data (2 bytes)-........-Data (2 bytes)
Command-47h (0100 0111): CRAM-ACMP
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
0
0
0
0
0
0
CRAMA CRAMA CRAMA CRAMA CRAMA CRAMA CRAMA CRAMA CRAMA CRAMA
9
8
7
6
5
4
3
2
1
0
Bit
Name
Description
D9
CRAMA
to
CRAM first address
D0
[9:0]
Value
Operation
000h
to
1BFh
CRAM address of the head at the time of writing in by 47h
command is set up.
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD CRAMD
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit
Name
Description
D15
CRAMD
to
CRAM data
D0
[15:0]
Value
Operation
7FFFh
to Set CRAM data (two-complement-form formula)
8000h
It is CRAM write-in command which used the address compare mode. A maximum of 32 words is
written at once.
The data written in continuously are sent after transmitting CRAM head address (2 bytes).
Enable a sequential write to RAM.
47h-CRAM address (2 bytes)-Data (2 bytes)-Data (2 bytes)-........-Data (2 bytes)
25
2002-01-11