tc9447f TOSHIBA Semiconductor CORPORATION, tc9447f Datasheet - Page 7

• Manufacturer Part Number: tc9447f
• Description: Single-chip Audio Digital Signal Processor
• Manufacturer: TOSHIBA Semiconductor CORPORATION

66, 67
68~70
81, 82
84~87
88~97
No.
Pin
64
65
72
73
74
75
76
77
78
79
80
98
99
TST [3:0]
EM [1:0]
IFF [2:0]
BA [1:0]
Omitted
Symbol
DOUT
BOOT
IFDO
IFCK
IFOK
ACK
ERR
I
IFDI
DIN
2
CS
XO
XI
CS
Serial input data signal input pin. Normally connected to internal register SI2 in ASP block.
Serial output data signal output pin. Normally connected to internal register SO2 in ASP block.
De-emphasis control pins
IFF control input pins. This functions the same as the microcontroller IFF [2:0] setting.
The program uses the latest changes to the flags.
Microcontroller interface pins
For details, see 2, microcontroller interface below.
Self-boot select pin
Self-boot start address pins (at reset)
Pins for inputting test settings. Use fixed to L.
Connect the crystal oscillator (master mode).
Setting CKS = L enables oscillation. Setting CKS = H pulls down XI/XO using the internal resistor.
IFDO
IFOK
I
IFCK
ACK
ERR
IFDI
BOOT
EM1
2
BA1
CS
CS
0
1
0
1
0
1
Transmit/receive mode switching (Standard Transmission mode/I
Chip select (Control required)
Transmit/receive clock
MCU data input
Acknowledge signal output
Error flag signal output
Internal operation confirmation flag signal output
Monitor data output
Does not boot at reset
Boot at reset
EM0
BA0
Standard Transmission Mode (I
0
1
0
1
0
1
0
1
De-emphasis off
For fs = 48 kHz
For fs = 44.1 kHz
For fs = 32 kHz
De-Emphasis Settings
Operation
Start Address
000h
001h
002h
003h
7
2
CS = L)
Function
Š
Chip select (Can be fixed to L)
MCU data input/output
Fixed to L output
Fixed to HZ
I
2
C Mode (I
2
C mode)
2
CS = H)
2002-02-05
TC9447F