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II. Multiplexing Function
Table 60: Multiplexing function
Pin name
Reset
Pin number
Mode 0(default)
Mode 1
Mode 2
Mode 3
STATUS
I/PD
4
STATUS
GPIO4
SIM_DET
I/PD
54
SIM_DET
GPIO5
EINT7
KBC0
I/PU
20
KBC0
GPIO6
-
-
KBC1
I/PD
25
KBC1
GPIO7
-
-
KBC2
I/PD
22
KBC2
GPIO8
-
-
KBC3
I/PD
21
KBC3
GPIO9
-
-
KBC4
I/PD
24
KBC4
GPIO10
EINT1
UART2_DCD
KBR0
LO
62
KBR0
GPIO11
-
-
KBR1
I/PD
60
KBR1
GPIO12
-
-
KBR2
I/PD
61
KBR2
GPIO13
-
-
KBR3
I/PD
23
KBR3
GPIO14
-
-
KBR4
I/PD
63
KBR4
GPIO15
EINT3
UART2_RI
PWM
I/PD
26
PWM
GPIO16
EINT0
-
NETLIGHT
I/PD
64
NETLIGHT
GPIO17
-
-
PCM_CLK
I/PD
29
PCM_CLK
DISP_RST
SD_CMD
GPIO18
PCM_OUT
I/PD
30
PCM_OUT
DISP_DI
SD_DATA3
GPIO19
PCM_SYNC I/PD
65
PCM_SYNC
DISP_CS
SD_CLK
GPIO20
PCM_IN
I/PD
66
PCM_IN
DISP_DATA
SD_DATA2
GPIO21
GPIO1
X
3
-
-
-
-
GPIO2
X
27
GPIO2
DISP_D/C
SD_DATA0
-
GPIO3
X
28
GPIO3
DISP_CLK
SD_DATA1
-
DTR
I/PD
69
DTR
GPIO22
EINT8
-
RI
I/PD
68
RI
GPIO23
-
UART2_RTS
DCD
I/PD
70
DCD
GPIO24
-
UART2_CTS
CTS
I/PD
34
CTS
-
-
UART2_RXD
RTS
I/PD
33
RTS
-
-
UART2_TXD
TXD
HO
32
TXD
UART1_TXD
-
-
RXD
I/PD
31
RXD
UART1_RXD
EINT4
-
SCL
I/PD
74
SCL
GPIO25
-
-
SDA
I/PD
75
SDA
GPIO26
-
-
Note: Multiplexing function need different software supply.
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III. Terms and Abbreviations
Table 61: Terms and abbreviations
Abbreviation
Description
ADC
Analog-to-Digital Converter
AMR
Adaptive Multi-Rate
CS
Coding Scheme
CSD
Circuit Switched Data
CTS
Clear to Send
DTE
Data Terminal Equipment (typically computer, terminal, printer)
DTR
Data Terminal Ready
DTX
Discontinuous Transmission
EFR
Enhanced Full Rate
EGSM
Enhanced GSM
ESD
Electrostatic Discharge
ETS
European Telecommunication Standard
FR
Full Rate
GPRS
General Packet Radio Service
GSM
Global Standard for Mobile Communications
HR
Half Rate
IMEI
International Mobile Equipment Identity
Li-ion
Lithium-Ion
MO
Mobile Originated
MS
Mobile Station (GSM engine), also referred to as TE
MT
Mobile Terminated
PAP
Password Authentication Protocol
PBCCH
Packet Broadcast Control Channel
PCB
Printed Circuit Board
PCL
Power Control Level
PCS
Personal Communication System, also referred to as GSM 1900
PDU
Protocol Data Unit
PPP
Point-to-point protocol
RF
Radio Frequency
RMS
Root Mean Square (value)
RTC
Real Time Clock
RX
Receive Direction
SIM
Subscriber Identification Module
SMS
Short Message Service
TE
Terminal Equipment, also referred to as DTE
TX
Transmit Direction
UART
Universal Asynchronous Receiver & Transmitter
URC
Unsolicited Result Code
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USSD
Unstructured Supplementary Service Data
Phonebook abbreviations
FD
SIM fix dialing phonebook
LD
SIM last dialing phonebook (list of numbers most recently dialed)
MC
Mobile Equipment list of unanswered MT calls (missed calls)
ON
SIM (or ME) own numbers (MSISDNs) list
RC
Mobile Equipment list of received calls
SM
SIM phonebook
NC
Not connect
Smart Machine Smart Decision
IV. Safety Caution
Table 62: Safety caution
Marks
Requirements
When in a hospital or other health care facility, observe the restrictions about the use of mobiles.
Switch the cellular terminal or mobile off, medical equipment may be sensitive to not operate
normally for RF energy interference.
Switch off the cellular terminal or mobile before boarding an aircraft. Make sure it is switched off.
The operation of wireless appliances in an aircraft is forbidden to prevent interference with
communication systems. Forget to think much of these instructions may lead to the flight safety or
offend against local legal action, or both.
Do not operate the cellular terminal or mobile in the presence of flammable gases or fumes. Switch
off the cellular terminal when you are near petrol stations, fuel depots, chemical plants or where
blasting operations are in progress. Operation of any electrical equipment in potentially explosive
atmospheres can constitute a safety hazard.
Your cellular terminal or mobile receives and transmits radio frequency energy while switched on.
RF interference can occur if it is used close to TV sets, radios, computers or other electric
equipment.
Road safety comes first! Do not use a hand-held cellular terminal or mobile when driving a
vehicle, unless it is securely mounted in a holder for hands free operation. Before making a call
with a hand-held terminal or mobile, park the vehicle.
GSM cellular terminals or mobiles operate over radio frequency signals and cellular networks and
cannot be guaranteed to connect in all conditions, for example no mobile fee or a invalid SIM card.
While you are in this condition and need emergent help, please remember using emergency calls.
In order to make or receive calls, the cellular terminal or mobile must be switched on and in a
service area with adequate cellular signal strength.
Some networks do not allow for emergency call if certain network services or phone features are in
use (e.g. lock functions, fixed dialing etc.). You may have to deactivate those features before you
can make an emergency call.
Also, some networks require that a valid SIM card be properly inserted in the cellular terminal or
mobile.
SIM800H&SIM800L_Hardware Design_V2.02 72 2015-07-27
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SIM800H&SIM800L_Hardware Design_V2.02 73 2015-07-27
Contact us:
Shanghai SIMCom Wireless Solutions Co.,Ltd.
Address: Building A, SIM Technology Building, No. 633, Jinzhong Road, Shanghai, P. R. China
200335
Tel: +86 21 3252 3300
Fax: +86 21 3252 3020
URL:
www.sim.com/wm
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