Function Table Of Ic - Sharp XL-505 Service Manual

XL-505/505C,CP-505B
IC701 RH-iX0189AWZZ:System Microcomputer (IX0189AW) (1/2)
Terminal Name Input/Output
Pin No.
1-4 COM3-COM0
5-7 VLC3-VLC1
8 VDD
9 OSC2
10 OSC1
11 VSS
12 XI
13 XO
14 MMOD
15 VREF-
16 KEY0 AN0/PA0
17 KEY1 AN0/PA1
18 KEY2 AN0/PA2
19 KEY3 AN0/PA3
20* KEY4 AN0/PA4
21 KEY5 AN0/PA5
22 KEY6 AN0/PA6
23 KEY7 AN7/PA7
24 VREF+
25 TXD SBO0/P00
26 RXD SBI0/P01
27 SBT0/P02
28 SBO1/P03
29 SBI1/P04
30 SBT1/P05
31 DK/BZER P06
32 RST/P27
33* RMOUT P10
34 P11
35 TM2IO P12
36 TM3IO P13
37 TM4IO P14
38 IRQ0 P20
39 SENS IRQ1/P21
40* IRQ2 P22
41 IRQ3 P23
42 IRQ4 P24
43* P30
44* P31
45 P32
46 LED0 WE/P50
47 LED1 RE/P51
48 LED2 CS/P52
49* LED3/S51 A16/P53
50* LED4/S50 A17/P54
51 SEG49 P60/A0
52 SEG48 P61/A1
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

FUNCTION TABLE OF IC

Output LCD COMMON output terminal
— LCD power terminal
— Microcomputer power supply +5V.
Output Main clock oscillator connection terminal f=8MHz
Input Main clock oscillator connection terminal f=8MHz
— Microcomputer power supply GND
Input Sub-clock oscillator connection terminal f=32.768kHz
Output Sub-clock oscillator connection terminal f=32.768kHz
Input Memory mode selection terminal
— Power supply for AD converter GND
Input Destination detection input this terminal serves as an A/D input port.
When resetting is performed, the destination setting is detected based on the DC voltage.
Input Operation key input, max. 8 keys
Input Operation key input, max. 8 keys
Input POWER key input detection
Input Tuner signal meter (S meter) voltage input terminal
IX0189AW: Unused terminal (regular input port)
Input Cassette tape erroneous erasing preventing lug detection input
H: Record inhibited
Input Tape run/END detection input If pulse input is detected, it is judged that the tape is running.
Input Cassette mechanism operation status detection input
H: Mechanism stop
— A/D converter power supply +5V
Output Terminal to output data to TUNER PLL IC
Input Data input from TUNER PLL IC
Output TUNER PLL IC sync clock output
Output Terminal to output data to VOL IC
Output VOL IC chip enable output
Output VOL IC sync clock output
Output TUNER PLL IC enable output
Input RESET signal input
— Unused terminal
Output Power mute output
Output Power amplifier operation control output
H: Amplifier operation ON
Output CD servo power circuit control output
Input Function setting input
Input Power failure detection input L: Change to HALT mode
Input Remote controller signal input
Input RDS IC sync clock input
Input Radio stereo broadcast reception detection input
Input Broadcast reception status detection input
Input RDS signal reception status detection
Input Data input from RDS IC
Output LC78623E RESET signal output
Output TC9284F chip enable terminal
Output TC9284F data sync clock output
Output TUNER mute output
Output IND LED control output (when SRS2 is on)
Output IND LED control output (when SRS1 is on)
Output Cassette mechanism solenoid drive control output
Output Cassette mechanism motor drive control output
Function
L: Record enable
L: Mechanism in operation
"L"=OFF "H"=ON
"L"=OFF "H"=ON
"H"=MUTE OFF "L"=MUTE ON
L: Amplifier operation OFF
H: CD power ON
Reset mode: H: 4-step selection
L: Broadcast wave reception
H: RDS not received
L: BUS terminal active
"H"=MUTE ON "L"=MUTE OFF
H: LED goes out
H: LED goes out
– 34 –
L: CD power OFF
L: 3-step selection
L: Stereo broadcast reception
L: RDS received
L: LED lights
L: LED lights