Nokia 8550 Manuale Di Servizio
NSM–3/3D
System Module
PAMS Technical Documentation
Page 29
Issue 4 02/2002
Nokia Corporation
Explanation
Note
Reset
State
Drive
req.
mA
Connected
to/from
Pin
Type
Name
Ball
F3
Row2
I/O
UIF
2
Input,
pullup
pullup
PR0201
I/O line for key-
board row 2, par-
allel LCD driver
data
F2
Row1
I/O
UIF
2
Input,
pullup
pullup
PR0201
I/O line for key-
board row 1, par-
allel LCD driver
data
F1
Row0
I/O
UIF
2
Input,
pullup
pullup
PR0201
I/O line for key-
board row 0, par-
allel LCD driver
data
L11
JTDO
O
2
Tri–
state
JTAG data out
L5
GND
Ground
N12
JTRst
I
Input,
pull-
down
pulldown
PD0201
JTAG reset
M12
JTClk
I
Input
pulldown
PD0201
JTAG Clock
N13
JTDI
I
Input,
pullup
pullup
PR0201
JTAG data in
M13
JTMS
I
Input,
pullup
pullup
PR0201
JTAG mode se-
lect
G13
VCC_IO
IO VCC in
3325c10
Power
L12
CoEmu0
I/O
2
Input,
pullup
pullup
PR0201
DSP/MCU
emulation port 0
L13
CoEmu1
I/O
2
Input,
pullup
pullup
PR0201
DSP/MCU
emulation port 1
H4
LEADGND
Lead Ground
L1
ARMGND
ARM Ground
N3
MCUAd0
O
MCU
MEMORY
2
0
MCU address
bus
K4
ARMVCC
ARM Power
N2
MCUAd1
O
MCU
MEMORY
2
0
MCU address
bus
N1
MCUAd2
O
MCU
MEMORY
2
0
MCU address
bus
M4
MCUAd3
O
MCU
MEMORY
2
0
MCU address
bus
M3
MCUAd4
O
MCU
MEMORY
2
0
MCU address
bus
M2
MCUAd5
O
MCU
MEMORY
2
0
MCU address
bus
M1
MCUAd6
O
MCU
MEMORY
2
0
MCU address
bus