tc9444f TOSHIBA Semiconductor CORPORATION, tc9444f Datasheet - Page 19

• Manufacturer Part Number: tc9444f
• Description: Single-chip Karaoke Ic Ii
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Note 14: Since C block is assigned to Keycontrol R-ch, and D block is assingned to Keycontrol L-ch, it is neseccary
to be set to KEY = 0H when using it here.
shown in the following figure.
Table 3.21 Block Assignment and Address Range of Delay RAM
fundamentally made in agreement.
to DECI command determines the band of a decimation filter.
In addition Delay RAM is properly used by MAL [2:0] as RAM of 024, 2048, and 4096 word, as
The same or overlapping block cannot be accessed by different decimation ratio.
Moreover, decimation ratio set up here and decimation ratio set up by DECI command need to be
DECI bit set up with an offset address determines decimation ratio of memory access, and a setup
MAL2
0
0
0
0
1
1
1
DECI2
Figure 3.1 Block Division of Delay RAM
0
0
0
0
Table 3.22 Setting of Decimation Ratio
MAL1
0
0
1
1
0
0
1
DECI1
0
0
1
1
FFFH
C00H
800H
400H
000H
MAL0
¾
1
0
1
0
1
0
1024 word
1024 word
1024 word
1024 word
DECI0
19
1
0
1
0
Block
C
D
G
A
B
E
F
D
C
B
A
Decimation Ratio
F
E
1/1
1/2
1/3
1/4
Address Range
BFFh to 800h
FFFh to C00h
FFFh to C00h
3FFh to 000h
7FFh to 400h
7FFh to 000h
FFFh to 000h
G
2002-01-11
TC9444F