Sharp UP-3301 Service Manual page 42

3) Pin description
Pin
Name I/O
No.
1 RF ON NU
2 JF ON NU
3 PCUTZ ON NU
4 FCUTZ ON NU
5 VFZ ON NU
6 STAMPZ ON NU
7 VIOZ O NU
8 VMEMZ O VRAM DECODER
9 SWAPZ O NU
10 RESZ O6M RESET
11 FROS1Z O FLASH ROM DECODER
12 FROMLZ O NU
13 POFF IC POWER OFF SIGNAL INPUT
14 INT1Z ICU INTERRUPT SIGNAL INPUT
15 HTS1 O SERIAL OUT (CKDC INTERFACE)
16 SCK1 O SERIAL CLOCK (CKDC INTERFACE)
17 STH1 IS SERIAL IN (CKDC INTERFACE)
18 MCRINT O MCR INTERRUPT OUT
19 VWAITZ IU VGA WAIT INPUT
20 VDD –
21 GND –
22 MCRINTZ O MCR INTERRUPT OUT
23 VRESC ON TURNS ACTIVE WHEN
RESET&POWER DOWN IS MET
24 SLTMG ICS GND
25 SLRST ICS GND
26 ASZ I ADDRESS STROBE
27 RDZ I READ STROBE
28 WRZ I WRITE STROBE
29 PHAI IS SYSTEM CLOCK (9.83MHz)
30 RASPN1 O PSRAM DECODE1
31 RASPN1E O PSRAM DECODE1 (EVEN)
32 RASPN12 O PSRAM DECODE1 OR 2
Z
33 GND –
34 RASPAN2 O PSRAM DECODE2
35 RASPN2E O PSRAM DECODE2 (EVEN)
36 VGALZ O NU
37 SDT1Z O NU
38 ID0 IO DATA BUS
39 ID1 IO DATA BUS
40 ID2 IO DATA BUS
41 ID3 IO DATA BUS
42 GND –
43 ID4 IO DATA BUS
44 ID5 IO DATA BUS
45 ID6 IO DATA BUS
46 ID7 IO DATA BUS
47 SSPRQZ O SSP REQUEST FOR CPU
48 RESETZ ICS MPCA RESET
49 INT2Z ICU INTERRUPT INPUT (/TPRRDY)
50 INT3Z ICU INTERRUPT INPUT (/TPTRDY)
51 RXDI O SERIAL OUT FOR CPU
Description
UP-3301US CIRCUIT DESCRIPTION
– 40 –
Pin
Name I/O
No.
52 TXDI IS SERIAL IN FROM CPU
53 SCKI IU SERIAL CLOCK FROM CPU
54 IRQ0Z O INTERRUPT SIGNAL FOR CPU
55 A0 I ADDRESS BUS
56 A1 I ADDRESS BUS
57 A2 I ADDRESS BUS
58 A3 I ADDRESS BUS
59 A4 I ADDRESS BUS
60 A5 I ADDRESS BUS
61 GND –
62 VDD –
63 A6 I ADDRESS BUS
64 A7 I ADDRESS BUS
65 A8 I ADDRESS BUS
66 A9 I ADDRESS BUS
67 A10 I ADDRESS BUS
68 A11 I ADDRESS BUS
69 A12 I ADDRESS BUS
70 A13 I ADDRESS BUS
71 A14 I ADDRESS BUS
72 A15 I ADDRESS BUS
73 A16 I ADDRESS BUS
74 A17 I ADDRESS BUS
75 A18 I ADDRESS BUS
76 A19 I ADDRESS BUS
77 A20 I ADDRESS BUS
78 A21 I ADDRESS BUS
79 A22 I ADDRESS BUS
80 LCDCZ O NU
81 A23 I ADDRESS BUS
82 TRGI IS NU
83 PTMG O NU
84 PRST O NU
85 INT4Z ICU NU
86 IPLONZ IU IPL SIGNAL FROM OPTION
CONNECTER
87 MD1 ICU TEST PIN
88 MD0 ICU TEST PIN
89 TESTZ ICU TEST PIN
90 TPRRDYZ O TOUCH PANEL INTERRUPT
(CONNECTED TO INT2Z)
91 TPTRDYZ O TOUCH PANEL INTERRUPT
(CONNECTED TO INT3Z)
92 TPRDY O NU
93 RCVRDY1 IU NU
94 RCVRDY2 IU NU
95 RCO O NU
96 IRTX O OUT
97 UASCK O CLOCK
98 UARXZ O DATA FOR CPU
99 UATXZ IU DATA FROM CPU
100 VDD –
101 GND –
Description