m65818afp Renesas Electronics Corporation., m65818afp Datasheet - Page 21

• Manufacturer Part Number: m65818afp
• Description: Digital Amplifier Processor Of S-master* Technology
• Manufacturer: Renesas Electronics Corporation.

M65818AFP
5.11. OFLFLAG
OFLFLAG pin is output the 'over flow flag' in the operation. OFLFLAG pin outputs "H" level by detection of over
flow from Gain Control Block and others.
The "H" level width is over 0.6msec, so detection result is held.
5.12. OUTL1+, OUTL1-, OUTL2+, OUTL2-, OUTR1+, OUTR1-, OUTR2+, OUTR2-
OUTL1+, OUTL1-, OUTL2+, OUTL2-, OUTR1+, OUTR1-, OUTR2+, and OUTR2- pins are pulse output modulated
∆Σ
These pins are connected to external Power Driver ICs.
PWM Output Form 1, 2, 3 and 4 can be selected by serial control data(System1 mode:bit22,23 ).
In each 4 forms, the operating rate and bit length of PWM Output can be changed following the setting of ∆Σ And the output
mute function and the output pins reverse function, can be controlled by the pin setting or serial control.
The PWM output control is shown in the following table.
Item
Output Form
Operating Rate and Data
Bit Length
Output Muting
Reverse Output
Pins Function
Rev.1.00, Sep.04.2003, page 21 of 38
output signal to PWM signal.
PWM Output Form1 : General Modulation
PWM Output Form2 : Symmetrical Modulation
PWM Output Form3 : Modulation returned with time domain.
(The rise and fall edge of Lch and Rch in a term are reverse.)
PWM Output Form4: Modulation returned with time domain.
(The rise and fall edge of Lch and Rch in a term are same timing.)
Operation
Output Form Selection
1,2,3,4
Select to
16fso/6bit ,16fso/5bit
,32fso/5bit from operating
rate and data bit length of
∆Σ
PWM operation are
synchronized by this
setting.
Duty 50% Mute
Absolute Zero Mute
Reverse on Lch and Rch
of output pins.
Reverse for OUTL1- and
OUTR1- of output pins.(
Output OUTL1+ /R1+
data to OUTL1- /OUTR1-
data.)
.
Setting Operation
Set up by the serial control system 1 mode
bit 22,23 (PWM MODE 0 and 1).
(Refer to Chapter 6.2. system 1 mode for details)
Set up by the serial control system 2 mode bit16 and bit17.
(Refer to Chapter 6.3. system 2 mode for details.)
Set NSPMUTE pin "L" or set up by serial control System 2
mode bit14 (NSPMUTE) "H".
(Refer to Chapter 5.13.NSPMUTE pin description and
6.3.system2 mode for details)
Set PGMUTE pin "L" or set up by serial control system2 mode
bit15(PGMUTE) "H".
(Refer to Chapter 5.14.PGMUTE pin description and 6.3
system2 mode for details)
Set up by serial control system2 mode bit9
(CHSEL ).
Set up by serial control system1 mode bit124(PWMHP).
(Refer to Chapter 6.2. system1 mode for details.)
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