tc9446fg TOSHIBA Semiconductor CORPORATION, tc9446fg Datasheet - Page 26

• Manufacturer Part Number: tc9446fg
• Description: Audio Digital Processor For Decode Of Dolby Digital Ac-3 , Mpeg2 Audio
• Manufacturer: TOSHIBA Semiconductor CORPORATION

10. External SRAM Connection
IO0 to IO7 terminal
AD0 to AD16 terminal
OE terminal
CE terminal
WR terminal
TC9446FG (3.3
Terminal Name
coefficient data, or data delay.
connection of external SRAM is shown in Figure 21.
AD0¯AD16
Example of High-speed 1 M SRAM connection
It can be used by the ability of able to connect external SRAM to processing of data tables, such as
The function of the terminal for external SRAM control is shown in Table 7. Moreover, the example of
IO0¯IO7
WR
CE
OE
Table 7 Function of Terminal for External SRAM Control
Figure 21 Example of Connection of External SRAM
Write signal output terminal for external SRAM
Output enable signal output terminal for external SRAM
Chip enable signal output terminal for external SRAM
Data input/output terminal for external SRAM (8 bit I/O)
It is 3
Address output terminal for external SRAM
It can access to address 00000h to 20000h.
17
8
rd
times accessing at 24 bit I/O.
1 M HS SRAM (3.3 V)
AD0¯AD16
IO0¯IO7
CE
OE
WR
26
TC9446FG (3.3
AD0¯AD14
Example of High-speed 256 k SRAM connection
AD15, 16
IO0¯IO7
Functions
WR
CE
OE
N.C
15
8
256 k HS SRAM (3.3 V)
AD0¯AD14
IO0¯IO7
CE
OE
WR
TC9446FG
2005-09-28