16
D-EJ250
5-6. IC PIN FUNCTION DESCRINTION
Pin No.
Pin Name
I/O
Description
• IC801 (SYSTEM CONTROL) T5AW5-04CD
1
GND
–
Ground terminal
2
XIN
I
System clock input
3
XOUT
O
Not used (OPEN)
4
TEST
I
Test mode terminal
5
VCPU_2.0V
–
Power supply
6
FOK_I
I
Focus OK signal input
7
XBUSY_I
I
Auto sequencer status signal input from BU9354CKV
8
RESET_I
I
Micon reset input
9
ACKCD_I
I
Not used (Fixed to L)
10
HP-L
O
Headphone/line switch signal output to AN17020B
11
SCOR_I
I
SCOR pulse input
12
HPSW_O
O
Headphone power switch signal output
13
DSP_SEL
I
DSP select signal input (Fixed to L)
14
XPOWLT_O
O
Data latch signal output to BH6580KV
15
SRW_O
O
Serial interface Read/Write signal output to BH9354CKV
16
SDTI_I
I
Serial data input from BU9354CKV
17
SDTO_O
O
Serial data output to BU9354CKV
18
SCK_O
O
Serial clock output to BU9354CKV
19
AVCPU
–
Power supply for CPU and I/O
20
ADVREF
I
Analog reference voltage for A/D converter
21
AD_SEL
I
Destination setting terminal
22
AD_CHGMNT
I
Charging monitor input
23
AD_KEY_2
I
Set’s button detection input
24
AD_BATTMNT
I
Battery voltage monitor input
25
WP/AD_KEY1
I
Set’s button detection input
26
WP/AD_RMKEY
I
Remocon’s button detection input
27
AD_DCINMNT
I
DC-IN voltage monitoring input
28
WP/XOPEN
I
OPEN switch status detection input
29
TUPWR_O
O
Not used (OPEN)
30
BEEP_O
O
BEEP sound output
31
NC
O
Not used (OPEN)
32
<VDD_EEPROM>
–
Power supply for EEPROM (Not used)
33
WP/K2_RM
O
Set’s button/remocon’s button select output
34
TU_ON_I
I
Not used (fixed at L)
35
VOL+
I
“VOL+” button detection input
36
X4M/16M_I
I
DRAM size selection terminal (fixed at H)
37
TEST
I
Test terminal
38
VOL–
I
“VOL–” button detection input
39
LCD_REQ_O
O
Not used (OPEN)
40
HOLD_I
I
HOLD switch status detection input
41 to 56
SEG0 to 15
O
LCD segment output
57 to 60
COM0 to 3
O
LCD common output
61 to 63
V1 to 3
–
Inner charge pump terminal
64
C1
–
Inner charge pump terminal
65
C0
–
Inner charge pump terminal
66
XWAKEUP_O
O
PGM wake-up signal output
Содержание Walkman D-EJ250
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