Sony PRS-505/SC - Portable Reader System Service Manual page 39

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