Canon PowerShot 350 Service Manual - Page 44

IC3002, Mi-COM

Page 44 highlights

Part 2: TechnicalInformation IC3002 RISC Mi-COM D703002G001 PIN No. 1 -5 6 7 8-15 16 17 18-25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 Name A20 -A16 VSS VDD AD15-AD8 VDD VSS AD7 -ADO VSS VDD NLBEN NUBEN R/NW NDSTB NASTB BUSY LCD ON(H) ROMR/NB NWAIT VDD VSS X2 X1 CKSEL CVDD CVSS CLK OUT VSS VDD SLFLED(H) EVRLD TCS ANCS NRST PLLSEL ICO MODE1 MODEO VDD VSS IRISA IRISB POWER(H) I/O Function 0 External Extension Address GND Power I/O External Extension MPX Address / Data Bus Power GND I/O External Extension MPX Address / Data Bus GND Power O External Data Bus, Low Byte enable O External Data Bus, High Byte enable 0 External Bus, Read / Write status O External Extension MPX Bus Data strobe 0 External Extension MPX Bus Address strobe O External Busy status 0 0 LCD Power control I EEPROM R/B External Bus Wait command Power GND Not used External Clock crystal oscillator I Internal PLL Select (Fixed Low) Power GND O Not used GND Power 0 Self-timer LED O EVR LD O RTCLK CS O EEPROM CS Reset input Internal PLL Mode Select (Fixed Low) (Fixed Low) Operation Mode Select (Fixed High) Operation Mode Select (Fixed High) Power GND O Iris A Control O Iris B Control 0 Power OFF 2-12

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Part
2:
Technical
Information
IC3002
RISC
Mi-COM
D703002G001
PIN
No.
Name
I/O
Function
1
-5
A20
-A16
0
External
Extension
Address
6
VSS
GND
7
VDD
Power
8-15
AD15-AD8
I/O
External
Extension
MPX
Address
/
Data
Bus
16
VDD
Power
17
VSS
GND
18-25
AD7
-ADO
I/O
External
Extension
MPX
Address
/
Data
Bus
26
VSS
GND
27
VDD
Power
28
NLBEN
O
External
Data
Bus,
Low
Byte
enable
29
NUBEN
O
External
Data
Bus,
High
Byte
enable
30
R/NW
0
External
Bus,
Read
/
Write
status
31
NDSTB
O
External
Extension
MPX
Bus
Data
strobe
32
NASTB
0
External
Extension
MPX
Bus
Address
strobe
33
BUSY
O
External
Busy
status
0
34
LCD
ON(H)
0
LCD
Power
control
35
ROMR/NB
I
EEPROM
R/B
36
NWAIT
External
Bus
Wait
command
37
VDD
Power
38
VSS
GND
39
X2
Not
used
40
X1
External
Clock
crystal
oscillator
41
CKSEL
I
Internal
PLL
Select
(Fixed
Low)
42
CVDD
Power
43
CVSS
GND
44
CLK
OUT
O
Not
used
45
VSS
GND
46
VDD
Power
47
SLFLED(H)
0
Self
-timer
LED
48
EVRLD
O
EVR
LD
49
TCS
O
RTCLK
CS
50
ANCS
O
EEPROM
CS
51
NRST
Reset
input
52
PLLSEL
Internal
PLL
Mode
Select
(Fixed
Low)
53
ICO
(Fixed
Low)
54
MODE1
Operation
Mode
Select
(Fixed
High)
55
MODEO
Operation
Mode
Select
(Fixed
High)
56
VDD
Power
57
VSS
GND
58
IRISA
O
Iris
A
Control
59
IRISB
O
Iris
B
Control
60
POWER(H)
0
Power
OFF
2-12