Fci (Functional Cover Interface); Fig 10 Upp/Uemek Sim Interface Connections - Nokia NPL-4 Series Manual

NPL-4/5/RM-104
System Module and User Interface
age. It is only allowed to change the SIM supply voltage when the SIM IF is powered
down.
The whole SIM interface locates in two chips UPP and UEMEK.
The SIM interface in the UEMEK contains power up/down, port gating, card detect, data
receiving, ATRcounter, registers and level shifting buffers logic. The SIM interface is the
electrical interface between the Subscriber Identity Module Card (SIM Card) and mobile
phone (via UEMEK device).
Parameter
SIMCARDet, BSI
comparator
Threshold
SIMCARDet, BSI
comparator
Hysteresis (1)
The data communication between the card and the phone is asynchronous half duplex.
The clock supplied to the card is in GSM system 1.083 MHz or 3.25 MHz.
y
SIM
C5 C6 C7
C8
C1 C2 C3 C4
From Battery
type contact

FCI (Functional Cover Interface)

NPL-4/5 has functional cover interface for changeable functional B-cover. The functional
cover interface consists of FCI ASIP chip and five contact pads on UI PWB. HW does not
support the I2C in BB4.0 engine whereupon interface uses SW emulated I2C protocol.
The FCI ASIP chip includes switch for power supply control and EMC filters for data lines.
Copyright © 2005 Nokia Corporation. All rights reserved.
Page 40
Table 21: SIMCARDet Detection
Variable Min
Vkey 1.94
Vsimhyst
Figure 10: UPP/UEMEK SIM Interface Connections
p
UEME
SIMIO
K
SIMClk
SIM
ASIP SIMRst
VSIM
BSI
Typ
2.1
50 75
SIMIO SIMIO
SIMClk
SIMClk
SIMRst
SIMR
st
SIMIF
register
UIF Block
UEMEKI
UEME
nt
K
CBusDa
digital
logic CBusEnX
CBusClk
Nokia Customer Care
Max Unit
2.26 V
100 mV
UPP
Issue 2 05/05