User's Manual

GSM/GPRS Module Series
M85 Hardware Design
M85_Hardware_Design Confidential / Released 17 / 88
3.1. Pin of Module
3.1.1. Pin Assignment
Power
SIM1
RESERVED
PCM
Other
SD
RESERVED
NETLIGHT
LOUDSPKN
LOUDSPKP
PWRKEY
EMERG_OFF
PCM_IN
PCM_CLK
RESERVED
RESERVED
RESERVED
SIM_GND
SIM1_RST
SIM1_DATA
SIM1_CLK
SIM1_VDD
RESERVED
SIM2_VDD
SIM2_CLK
SIM2_DATA
SIM2_RST
SIM1_PRESENCE
GND
Audio
ADC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 21
22
23 24 25 26 27 28 29 30 31 32 33 34
35
36 37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
5758
59
60
616263646566676869
70
71727374
Top view
RFSIM2
VBAT
UART
ADC0
RESERVED
SPK2P
AGND
MIC2P
MIC2N
MIC1P
MIC1N
SPK1N
SPK1P
STATUS
PCM_OUT
PCM_SYNC
RESERVED
RESERVED
RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED
RESERVED RESERVED
RESERVED
SD_CMD
SD_CLK
SD_DATA0
GND
TXD_AUX
RXD_AUX
DBG_TXD
DBG_RXD
DCD
RI
DTR
CTS
TXD
RXD
RTS
VRTC
VDD_EXT
GND
GND
RF_ANT
GND GND GND
VBAT VBAT VBAT
VBAT
75
76
77
78
79
80
81
82
RESERVED
RESERVED
RESERVED
RESERVED
GND
GND
GND
GND
RESERVED
83
Figure 2: Pin Assignment
Keep all reserved pins open.
NOTE