– 5-8 –
General purpose I/O lines usage
■
Specific I/O
Specific I/Os are reserved for the buzzer and keyboard.
Buzzer is not supported in EB-X400 because ringing tones are sounded through a speaker.
9
PWM
The U2001 E-Gold + V3 supports driving a ringer with a digital PWM signal RINGIN. Earpiece buffer one can be switched into
ringer mode by setting bit RINGSEL in the voiceband part of the analog control register.
The input to RINGIN can be selected by setting the bits RINS0 and RINS1 in the voiceband control register. The ringer input
signal is usually a pulse-width modulated signal which can be programmed conveniently.
9
Keypad Interface
The Keypad gives a 6 x 4 scan matrix allowing 24 keys. The keyboard interface provides a passive key detect function,
where a key press can be detected without activity scanning the matrix, thus enabling a fast key response, even when the
CPU is in idle. The scan period is every 4 msec.
If there is a need to support more than 24 keys, the key matrix can be extended by adding scan column output GPIO's.
The maximum key resistance is 2 k
Ω
, leakage between any two key matrix lines must be kept below 5
µ
A.
The End Key is also used to power on the phone it is allocated a complete ROW of the keyboard scan.
EB-X400 supports the VSCL games and keypad assignments for VSCL games refers to the below table.
Keypad assignments
Column 1
Column 2
Column 3
Column 4
Column 5
Column 6
KP0
KP1
KP2
KP3
KP4
KP5
Row 0
Left
Up
*
7
4
1
KP6
(Game C)
(Game A)
Row 1
Send
Center
0
8
5
2
KP7
(Fire)
(Fire)
Row 2
Right
Down
#
9
6
3
KP8
(Game D)
(Game B)
Row 3
Soft_1
Soft_2
Shutter
KP9
Bottom
E-Gold + V3 pin name
Ball
EB-X60 use
Description
HLDAQ/CC03IO/DSPIN0/T2IN
U7
SDIR
IrDA sensor enable/disable
T_OUT4/DSPIN0
G14
AM_TRIG
Blocker detection in RF LSI
T_OUT5/CCI7IO
G17
CAM_INT
Companion IC interrupt detection
nCS0
A15
CSFLASH1
CS for FLASH1
nCS1
C16
CSMSRAM
CS for MSRAM
nCS2/CC02IOB
A17
CSFLASH2
CS for FLASH2
nCS3/EX4IN/DSPIN0/T4EUD
D15
CSCAM
CS for Companion IC
nCS4/DSPOUT
E14
POLY_EN
CS for Polytone IC
RESTR4/EX2IN/CLK32K
L15
CAM32K
CLK for Companion IC
MMCDAT
L16
CAM_A[2]
Command/data selection for Companion IC
LPAOUT0/CC05IO
P8
OPDET
Open/Close interrupt detection
CLKSXM/I2SWAO
R17
POLYCLK
Clock source for YAHAMA melody IC
T_OUT11/CC19IO
H15
HOOK_KEY
Hook key interrupt detection
CC02IO/nHOLD/DSPOUT1
D16
HS_DET
Headset insert interrupt detection
LPAOUT1/I2SCAO
U16
KEYLED
Key LED control (ON/OFF)
RFSTR3/CC21IO
K16
CUR_EN
LCD backlight control (ON/OFF)
CC00IO/T3OUT
R9
TRI_R
Tri-color LED (Red) control (ON/OFF)
MTSR/SDA
R16
TRI_B
Tri-color LED (Blue) control (ON/OFF)
SSCCLK/SCI
U17
TRI_G
Tri-color LED (Green) control (ON/OFF)
RFSTR2/CC07IO
K15
TOPLED1
Charge LED (Red) control (ON/OFF)
MMCRORD/LPAOUT3/EX3BIN
P15
SHUTDOWN
32
Ω
driver amplifier control
T_OUT6/T4IN
K15
SW_EN
PHF path enable signal
Содержание EB-X400
Страница 86: ...12 1 12 LAYOUT DIAGRAMS 12 1 Main Board U2001 ...
Страница 87: ...12 2 ...
Страница 88: ...12 2 Upper Face PCB 12 3 Green Black Black White ...
Страница 89: ...12 3 Hinge PCB 12 4 ...
Страница 90: ...12 4 SIM PCB 12 5 ...