Service manual

ManualsBrandsDual ManualsAmplifierDA1000D

- 13 -

IC BLOCK DIAGRAM & DESCRIPTION

IC601 IC LC72338-9B55 (Single-Chip PLL + Controller)

PIn name Pin No. I/O I/O Format Functions

S17/PE0

S18/PE1/SCK2

S19/PE2/SO2

S20/PE3/SI2

S25/PM0

S26/PM1

S27/PM2

S28/PM3

I/O

LCD driver segment output, general-porpose input/output and

serial I/O ports

The IOS instruction is used to switch between the LCD driver

segment output, general-purpose I/O, and serial I/O functions,

and to switch between input and output of the general-purpose

input port function.

• For use as segment output

These pins can be set in bit units.

The IOS instruction with Pn=ODH specifies segment output

use in bit units.

b0=S17/PE0 0 • • • Segment output

b1=S18/PE1 1 • • • PE0 to 3 output

b2=S19/PE2

b3=S20/PE3

• For use as general-purpose input /output port

These pins can be set for input /output in bit units.

(1 bit I/O)

b2=SI/O2 0 • • • Genetal-purpose port

1 • • • SI/O port

Input /output is specified with the IOS instruction in bit units.

PE • • • Pn=4 0 • • • Input

1 • • • Output

• For serial I/O port

The serial I/O port function is specified with the IOS instruction

(Pn=0).

The contents of the serial I/O data buffer can be saved and

loaded with the INR and OUTR instructions.

*Pin setup states when used as a serial I/O port

PE0 • • • General-purpose input /output

PE1 • • • SCK2 output in internal clock mode

SCK2 output in external clock mode

PE2 • • • SO2 output

PE3 • • • SI2 input

In CLOCK STOP mode, if this port is used as a general-purpose

I/O port or as a serial I/O port, the pins go to the input disabled

high-impedance state. If used for segment output, the pins fixed at

the low level. The segment output port function is selected after a

power-on reset.

LCD driver segment output, general-porpose input /output ports.

The IOS instruction is used to switch between the LCD driver

segment output, general-purpose I/O port, and serial I/O to switch

between input and output of the general-purpose input /output

port function.

• For use as segment output

These pins can be set in 4 bits units. The IOS instruction with

Pn=OEH specifies segment output use in bit units.

b0=S25 to 28/PM0 to 3 0 • • • Segment output

1 • • • PM0 to 3

• For use as general-purpose input /output port

These pins can be set for input /output in bit units.

Input /output is specified with the IOS instruction in bit units.

PM • • • Pn=OCH 0 • • • Input

1 • • • Output

In CLOCK STOP mode, if this port is used as a general-purpose

I/O port, the pins go to the input disabled high-impedance state. If

used for segment output, the pins are fixed at the low level. The

segment output port function is selected after a power-on reset.

CMOS

three

value

output

and

push-pull

CMOS

three

value

output

and

push-pull

PIn name Pin No. I/O I/O Format Functions

S21/PF0

S22/PF1/SCK1

S23/PF2/SO1

S24/PF3/SI1

S29/PN0/BEEP

S30/PN1

S31/PN2

S32/PN3

I/O

LCD driver segment output, general-porpose input/output and

serial I/O ports.

The PF0 to 3 inputs are in the Schmidt format.

The IOS instruction is used to switch between the LCD driver

segment output, general-purpose I/O, and serial I/O functions, and

to switch between input and output of the general-purpose input

port function.

• For use as segment output

These pins can be set in 4 bits units. The IOS instruction with

Pn=OEH specifies segment output use in bit units.

b0=S21 to 24/ PF0 to 3 0 • • • Segment output

1 • • • PE0 to 3

• For use as general-purpose input /output port

These pins can be set to input /output in bit units. (1 bit I/O)

b1=SI/O 1 0 • • • Genetal-purpose port

1 • • • SI/O port

Input /output is specified with the IOS instruction in bit units.

PF • • • Pn=5 0 • • • Input

1 • • • Output

• For use as serial I/O port

The serial I/O port function is specified with the IOS instruction

(Pn=0). The contents of the serial I/O data buffer can be saved

and loaded with the INR and OUTR instructions.

*Pin setup states when used as a serial I/O port

PF0 • • • General-purpose input /output

PF1 • • • SCK1 output in internal clock mode

SCK1 output in external clock mode

PF2 • • • SO1 output

PF3 • • • SI1 input

In CLOCK STOP mode, if this port is used as a general-purpose

I/O port or as a serial I/O port, the pins go to the input disabled

high-impedance state. If used for segment output, the pins are

fixed at the low level. The segment output port function is selected

after a power-on reset.

Segment output/general-porpose input port 1/ BEEP tone output

pins. The IOS instruction is used to switch between the segment

output port and the PN0 to 3 functions. The BEEP instruction

switches between the general-purpose output port and BEEP tone

function.

• For use as segment output

These pins can be set in 3 bits units. The IOS instruction with

Pn=OEH specifies segment output use in bit units.

b2=S29 to 32/ PN0 to 3 0 • • • Segment output

1 • • • PN0 to 3

• For use as general-purpose output.

The general-porpose output port function is selected with the

BEEP instruction (b3=0).

PN1 to 3 are dedicated general-purpose output function pins.

• For use as BEEP output pin

The BEEP instruction with b3=1 sets the BEEP output.

The BEEP instruction bit b0,b1 and b2 sets the frequency.

When this is set as the BEEP port, executing an output

instruction will rewrite the internal latch data but has no

influence on the output.

These pins go to the output high-impedance state in clock stop

mode. If used for segment output, the pins are fixed at the low level.

These pins go to the output high-impedance state during the

power-on reset and hold that state until an output instruction is

executed.

CMOS

three

value

output

and

push-pull

CMOS

three

value

output

and

push-pull