PAMS Technical Documentation
System Module
NSB-7
Issue 1 06/00
ã
Nokia Mobile Phones Ltd.
Page 29
The MAD2 operates from a 13 MHz system clock, which is generated from the 13Mhz
VCXO frequency. The MAD2 supplies a 6,5 MHz or a 13 MHz internal clock for the MCU
and system logic blocks and a 13 MHz clock for the DSP, where it is multiplied to 45.5
MHz DSP clock. The system clock can be stopped for a system sleep mode by disabling
the VCXO supply power from the CCONT regulator output. The CCONT provides a 32 kHz
sleep clock for internal use and to the MAD2, which is used for the sleep mode timing.
The sleep clock is active when there is a battery voltage available i.e. always when the
battery is connected.
MAD2WD1 supply voltages are VBB and VCORE (V2V), VBB feed I/O pins so that
MAD2WD1 is externally fully compatible with old versions. VCORE feed MAD2WD1
internal functions supply voltage; CPU, DSP and system logic.
Pin
No:
Pin Name
Pin
Type
Connecte
d to/
from
Drive
req. mA
Reset
State
Note
Explanation
A1
MCUGemIO 0
O
2
0
MCU General pur-
pose output port
C2
LEADGND
Lead Ground
D2
Col4
I/O
UIF
2
Input
Programma-
ble pullup
PR0201
I/O line for keyboard
column 4
D3
Col3
I/O
UIF
2
Input
Programma-
ble pullup
PR0201
I/O line for keyboard
column 3
H11
MCUGenIO1
I/O
2
Input,
pullup
Pullup
PR0201
General purpose I/O
port
E4
GND
Ground
D4
Col2
I/O
UIF
2
Input
Programma-
ble pullup
PR0201
I/O line for keyboard
column 2
C4
Col1
I/O
UIF
2
Input
programma-
ble pullup
PR0201
I/O line for keyboard
column 1
C3
Col0
I/O
UIF
2
Input
programma-
ble pullup
PR0201
I/O line for keyboard
column 0
D1
LCDCSX
I/O
UIF
2
Input
external pul-
lup/down
serial LCD driver chip
select, parallel LCD
driver enable
E1
LEADVCC
Lead Power
F12
LoByteSelX
NC
Содержание NSB-7 Series
Страница 81: ...Programmes After Market Services NSB 7 Series Transceivers Issue 1 06 00 ãNokia Mobile Phones Ltd UI Module ...
Страница 101: ...Programmes After Market Services NSB 7 Series Transceivers Issue 1 06 00 ãNokia Mobile Phones Ltd Product Variants ...
Страница 219: ...Programmes After Market Services NSB 7 Series Transceivers Issue 1 06 00 ãNokia Mobile Phones Ltd Service Tools ...