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P7389i – Circuit Description
X
7
KBR0
7
X
KBR1
KBR2
2
1
X
X
KBR3
KBR4
X
X
KBC0
FAST
0
ACCESS
X
*
KBC1
KBC2
OK
9
#
8
KBC3
KBC4
X
X
GND
VA
X
Logic: Display
1) The display is a 96 X 64 pixel graphics display and is connected to the PCB via a 16
Pin ZIF connector J902. It is made up of glass with polarizers, a display driver and
transflector. It is connected to the PCB through an elastomeric contact. The LCD is
controlled by:
•
CS1
Chip Select which originates from DP_EN_L, Whitecap Pin A11 to
•
RES
which originates from RESET, Whitecap Pin P2 to
•
R/W
which originates from R_W, Whitecap Pin P2 to
• 7 Data Lines from Whitecap
• The display is supported by
measured on
C965)
• Also the data / command signal
Logic: IrDA
1) The IrDA port is used in conjunction with the Truesync Software to transfer data
between various applications. This as yet cannot be used for flashing and flexing of the
phone's software.
The block diagram of the
2) The IrDA data takes the form of a SIP (Serial Infrared Pulse) with
active high signal that turns the LED on. The received signal
pulsed, active low 2.4µs pulse, and a low will light the LED.
Motorola Internal Use
2
X
X
1
X
X
X
MENU
X
SCROLL
DOWN
MENU
X
X
SCROLL
DOWN
X
X
X
6
X
X
5
X
X
4
X
X
3
X
X
X
X
X
X
X
X
DO – D7
V2
and
–10V
AO
from Whitecap Pin B12.
IrDA module U500
14
FAST
X
OK
ACCESS
0
*
6
5
X
X
X
X
X
VOL
VOL UP
DOWN
VOL
X
MAIL
DOWN
VOL UP
MAIL
MENU
CLEAR
MENU
SCROLL
UP
X
X
X
X
J902
Pin 2.
J902
Pin 4.
(originating from
U904
circuit can be seen in Fig 1.1 below
URXD
#
X
9
8
X
4
3
X
X
X
X
X
X
X
MENU
X
CLEAR
X
X
MENU
X
SCROLL
UP
X
X
X
X
X
X
X
X
J902
Pin 1.
and can be
UTXD
being an
is always a
VA
X
X
X
X
X
X
X
X
X
X
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