Cinterion
®
ELS31-VA/ELS51-VA Hardware Interface Description
2.1 Application Interface
56
ELS31-VA_ELS51-VA_HID_v01.000
2017-01-04
Confidential / Preliminary
Page 15 of 106
Signal pads that are not used should not be connected to an external application.
Please note that the reference voltages listed in
are the values measured directly on
the ELS31-VA/ELS51-VA module. They do not apply to the accessories connected.
Table 1:
Pad assignments
Pad no. Signal name
Pad no. Signal name
Pad no. Signal name
1
GND
23
GPIO20/PCM_I2S_OUT
45
USB_DP
2
GND
24
GPIO22/PCM_I2S_FSC
46
USB_DN
3
GND
25
GPIO21/PCM_I2S_IN
47
GND
4
GND
26
GPO23/PCM_I2S_CLK
48
GND
5
BATT_RF
27
I2CDAT
49
GND
6
GND
28
I2CCLK
50
GND
7
ADC1
29
GPIO17/TXD1/HOST_ACTIVE 51
GND
8
ON
30
GPIO16/RXD1/AP_WAKEUP
52
GND
9
GND
31
GPIO18/RTS1/CP_WAKEUP
53
BATT_BB
10
V180
32
GPIO19/CTS1/SUSPEND
54
GND
11
RXD0
33
EMERG_RST
55
GND
12
CTS0
34
GND
56
DIV_ANT
13
TXD0
35
GPIO25
57
GND
14
RING0/GPIO24
36
GPIO8/COUNTER
58
GND
15
RTS0
37
GPIO7
59
RF_OUT
16
Not connected
38
GPIO6
60
GND
17
CCRST
39
LED/GPO5
61
GND
18
CCIN
40
GPIO4/FST_SHDN
62
GND
19
CCIO
41
DSR0/GPIO3
63
GND
20
CCVCC
42
DCD0/GPIO2
64
GND
21
CCCLK
43
DTR0/GPIO1
65
GPIO27/SPI_CS2
22
VCORE
44
VUSB
66
GPO26/SPI_CS1
Centrally located pads
67
GND
83
Do not use (test)
99
GND
68
GND
84
GND
100
GND
69
GND
85
GND
101
GND
70
GND
86
GND
102
GND
71
GND
87
Do not use (test)
103
GND
72
Not connected
88
GND
104
Not connected
73
GND
89
GND
105
Not connected
74
Do not use (test) 90
GND
106
SPI_MOSI
75
Do not use (test) 91
Do not use (test)
245
GND
76
Do not use (test) 92
GND
246
HSIC_DATA
77
Do not use (test) 93
SDIO0
247
HSIC_STRB
78
Do not use (test) 94
SDIOCLK
248
SPI_CLK
79
Not connected
95
SDIO1
249
SPI_MISO
80
Do not use
96
SDIO2
250
GND
81
GND
97
SDIO3
251
SDIOCMD
82
GND
98
GND
252
GND