Sharp XL-DK257N Service Manual page 80

XL-DK257N
IC701 RH-IXA159AW00: System Microcomputer (1/5)
NAME
Pin
No.
PORT_TYPE
NO USE
1
P96/ANEX1
NO USE
2
P95/ANEX0
3 VOL_DATA
P94
4 VOL_CLK
P93
5 NO USE
P92/TB2IN
6 NO USE
P91/TB1IN
7 VOL_LATCH
P90/TB0IN
8 BYTE
BYTE
9 CNVSS
CNVSS
10 XCIN
P87/XCIN
11 XCOUT
P86/XCOUT
12 RESET
RESET
13 X_OUT
XOUT
14 GND
VSS
15 X_IN
XIN
16 VCC
VCC1
17 NMI
P85/NMI
18 P-IN
P84/INT2
19 OSC
P83/INT1
20 RX_IN
P82/INT0
21 AMP DET
P81
22 AMP MUTE
P80
23 AMP ON/OFF
P77
24 RDS_VOLT_CONT
P76
25 RDS DATA
P75/TA2IN
INPUT /
FORM
OUTPUT
OUTPUT CMOS INPUT / OUTPUT
OUTPUT CMOS INPUT / OUTPUT
OUTPUT CMOS INPUT / OUTPUT
OUTPUT CMOS INPUT / OUTPUT
OUTPUT CMOS INPUT / OUTPUT
OUTPUT CMOS INPUT / OUTPUT
OUTPUT CMOS INPUT / OUTPUT
INPUT INPUT
INPUT INPUT
INPUT CMOS INPUT / OUTPUT
OUTPUT CMOS INPUT / OUTPUT
INPUT INPUT
OUTPUT CMOS OUTPUT
- -
INPUT CMOS INPUT
- -
INPUT CMOS INPUT
INPUT CMOS INPUT / OUTPUT
OUTPUT CMOS INPUT / OUTPUT
INPUT CMOS INPUT / OUTPUT
INPUT CMOS INPUT / OUTPUT
OUTPUT CMOS INPUT / OUTPUT
OUTPUT CMOS INPUT / OUTPUT
OUTPUT CMOS INPUT / OUTPUT
INPUT CMOS INPUT / OUTPUT
8 – 7
SOFT
FUNCTION OUTLINE
PULLUP
Fix "L"
OFF Fix "L"
COMMUNICATION WITH
DATA OUTPUT
COMMUNICATION WITH
CLOCK OUTPUT
Fix "L"
OFF
Fix "L"
COMMUNICATION WITH
LATCH OUTPUT
EXTERNAL BUS. JOINT TO
-
VSS IF NO USE
USED IN SINGLE MODE.
CONNECT TO VSS
THROUGH PULL DOWN
-
RESISTOR. EXCLUSIVE USE
FOR VCC DURING FLASH
WRITING
32.768kHz X'tal (SUB-CLOCK)
OFF
32.768kHz X'tal (SUB-CLOCK)
RESET INPUT. ACTIVE "L"
- CONNECT TO WRITER
RESET LINE DURING FLASH
MICOM STANDARD
OSCILLATION OUTPUT
-
CONNECT TO 9.8MHz
CERAMIC OSCILLATION
- CONNECT TO GND(VSS).
MICOM STANDARD
OSCILLATION OUTPUT
-
CONNECT TO 9.8MHz
CERAMIC OSCILLATION
SUPPLY INPUT TO MICOM
- (3.3V)
BACK-UP POWER SUPPLY
CONNECT TO VCC
- THROUGH PULL UP RESIS-
TOR. (SET FOR FLASH)
POWER FALURE DETEC-
TION. JUDGE AS POWER
OFF
FAILURE IF FAIL TO DETECT
EDGE WITHIN 90 msec.
OSCILLATOR FREQUENCY
ADJUSTMENT. SET FOR
H=415kHz, L=375kHz
REMOCON IN
(SHARP FORMAT)
OFF
POWER IC ABNORMAL
DETECT ABNORMAL=L
AMP MUTE CONTROL L:
MUTE OFF, H: MUTE ON
AMP ON/OFF CONTROL L:
OPERATING MODE,
H: STANDBY MODE
RDS FUNCTION CONTROL H:
OFF
FM FUNC ONLY (H MODEL)
RDS DATA in (H MODEL)