Renesas M65881AFP User Manual
Page 16
Rev.1.00 2003.05.08 page 16 of 23
M65881AFP
Table 2-1 Selection of input format
Table 2-2 Setting for Input Data Word Length
Table 2-3 Selection of Input Sampling Rate (fsi:32k to 48kHz, 2fsi:64k to 96kHz, and 4fsi:128k to 192kHz)
Table 2-4 Fs selection for De-emphasis filter (De-emphasis is "ON" except for bit9=L and bit10=L)
24bit
Don't use
20bit
bit
Flag Name
H
H
L
IBIT0
L
H
H
IBIT1
fsi
4fsi
2fsi
bit
Flag Name
L
L
H
H
7
ISF0
L
H
H
L
8
ISF1
bit
Flag Name
3
IFMT0
L
L
4
IFMT1
H
L
L
H
H
H
MSB First Left
Justified
MSB First Right
Justified
LSB First Right
Justified
I
2
S
48.0k
44.1k
bit
Flag Name
H
L
9
EMPFS1
L
H
10
EMPFS2
OFF
L
L
Don`t use
2. System1 Mode
No setting bits means "Don't care".
bit
Flag name
Function Explanation
H
L
INIT
1
MODE1
Mode Setting 1
"L" fixed
–
2
MODE2
Mode Setting 2
"H" fixed
–
3
IFMT0
L
4
IFMT1
L
5
IBIT0
L
6
IBIT1
L
7
ISF0
L
8
ISF1
L
9
EMPFS1
L
10 EMPFS2
L
11 DF1IMUTE
Zero Mute at DATA input
active
non-active
L
12 DF2IMUTE
Zero Mute at sampling rate converter input
active
non-active
L
13
–
14
–
15
–
16
–
17
–
18
–
19
–
20
ASYNC1MODE Asynchronous Detection Flag for Primary Side
Zero Mute
PWM:duty50%
L
21
–
22 PWMMODE0 Selection for PWM Output type
L
23 PWMMODE1
L
24 PWMHP
Phase of HPOUTL1/R1 based on PWM output for power
Same Phase
Reverse Phase
L
Refer to the Table2-1 below
Refer to the Table2-5 below
Refer to the Table2-2 below
Refer to the Table2-3 below
Refer to the Table2-4 below
Input Format Selection
Setting for Input Word Length
Input sampling rate selection
Fsi selection for De-emphasis Filter
16bit
L
L
32.0k
H
H
5
6
Table 2-5 Selection PWM Output
•PWM Output Form2 enables to operate following conditions.
MCKSEL=L ( Secondary master clock 1024fso )
Serial Control System2 Mode; bit16 ( NSOBIT ) = "H" ( 5bit )
bit 17 ( NSSPEED )="L" (16fso )
In case of the setting and release for PWM Output Form 2,
Refer to "The NOTE1 at setting PWM output Form 2" on next page.
bit
Flag name
22
PWMMODE0
23
PWMMODE1
PWM Output Form1
PWM Output Form3
PWM Output Form2
L
L
H
L
H
L
PWM Output Form4
H
H
Selection of Input format ( bit3,4: IFMT0,1)
Refer to Table 2-1.
Input word length (bit5,6: IBIT0,1)
Refer to Table 2-2. This setting is enable the case of MSB First Right justified.
Selection of Input Sampling Rate (bit7,8 : ISF0,1)
Refer to Table 2-3