Sony PRS-505 Service Manual page 39

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MAIN BOARD IC801 HD64F38004FP10V-V198 (SUB CPU)
Pin No. Pin Name
1 BATT-DC
2
3
4
5
6
7
8
9
10
11 to 13 P33 to P35
14, 15 STAT1, STAT2
16
17 to 19
20
21
22
23 XM_RESET
24
KEY_OUT7 to
25 to 29
KEY_OUT3
KEY_OUT2 to
30 to 32
KEY_OUT0
33 to 40 KEY_IN7 to KEY_IN0
41
42
TE 43
L 13942296513
44 LOW-BATT-LI
45
46 USBCHG
47
48 STBY_SW
49
50
51
52 USBBOOT
53
54
55
56
57
58
59
60
61
62
63
64
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I/O Description
I Power supply input from the AC adaptor
X1 I System clock input terminal (32.768 kHz)
X2 O System clock output terminal (32.768 kHz)
VSS - Ground terminal
OSC2 O System clock output terminal (4.9152 MHz)
OSC1 I System clock input terminal (4.9152 MHz)
TEST I Connect to ground
XRESET I System reset signal input terminal
ISET1 I Charge current setting siganal input terminal
ISET2 O Charge current setting siganal output to the charge control
- Connect to power supply
I Charge state monitor input from the charge control
VCC - Power supply terminal (+2.9V)
V1 to V3 - Connect to power supply
PWRON O Main power on/off control signal output terminal
AD_ON O Rechargeable battery input control signal output terminal
POR O Power on reset signal output to the main CPU
O Master reset signal output to the main CPU
USBON O USB charge on/off control signal output terminal
O Key scan signal output terminal
O Key scan signal output terminal
I Key scan signal input terminal
KEY-INT I Key scan interrupt input from the KEY-ON (pin 53)
CTS I Clear to send signal input from the main CPU
USBDET I USB cable connect signal input terminal
I Rechargeable battery low detect signal input terminal
WKP3 I Not used
I USB charge enable signal input from the main CPU
External DC power state detection signal input from the charge control
DCDET I
"L": external DC power on
I Power switch signal input terminal
KEYLED O LED drive signal output terminal
LED_1 O LED drive signal output terminal for USB indicator
LED_2 O LED drive signal output terminal
O Main CPU boot mode control signal output to the main CPU
KEY-ON O Key scan interrupt signal output to the KEY-INT (pin 41)
P95 O Connect to power supply
VSS - Ground terminal
IRQAEC I Not used
RTS O Request to send signal output to the main CPU
RXD I Serial data input from the main CPU
TXD O Serial data output to the main CPU
IRQ0 I Not used
AVCC - Power supply terminal (+2.9V)
AN0 I Not used
BATT-LI I Rechargeable battery input terminal
AN2 I Not used
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"L": reset
Not used
Q Q
3 6 7 1 3
Not used
Not used
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2 9 9 4 2 8
"H": main power on
"H": rechargeable battery input
"H": reset
"L": reset
"H": USB charge on
"H": USB cable is connected
1 5 0 5 8 2 9 9 4
"H": LED on
m
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PRS-505
9 9
2 8 9 9
39