User's Manual
SHANGHAI SIMCOM LIMITED
8
1.3 Block diagram
MAIN BOARD
MSM8909
WCN3660B
PM8909
WTR4905
MEMORY
GPIO28/SCAM_RST_N 3
GPIO27/SCAM_MCLK 4
MIPI_CSI1_LANE0_P 5
MIPI_CSI1_LANE0_N 6
MIPI_CSI1_CLK_P 7
MIPI_CSI1_CLK_N 8
MIC3_IN_P 9
MIC2_IN_P 10
CDC_HS_DET 11
SPKR_DRV_M 12
SPKR_DRV_P 13
CDC_EARO_M 14
CDC_EARO_P 15
MIC_GND 16
MIC1_IN_P 17
MIC_BIAS1 18
CDC_HPH_R 19
CDC_HPH_REF 20
CDC_HPH_L 21
GPIO_14 22
GPIO_15 23
GPIO_6/UART_CTS_N 24
GPIO_7/UART_RFR_N 25
GPIO_4/UART_TX 26
GPIO_5/UART_RX 27
GPIO_111/UART_CTS_N/SDA 28
GPIO_112/UART_RFR_N/SCL 29
31 BT_WIFI_IN
GPIO_13/TS_INT_N 33
GPIO_18/TS_12C_SDA 34
GPIO_19/TS_12C_SCL 35
GPIO_12/TS_RST_N 36
GPIO_38/SD_CARD_DET_N 37
GPIO_20/UART_TX 38
GPIO_21/UART_RX 39
GPIO_90/KPSNS0 40
GPIO_91/KPSNS1 41
GPIO_92/KPSNS2 42
USB_DM 44
USB_DP 45
GPIO_22/AUDIO_PA_EN 47
GPIO_28 48
GPIO_0/MI2S_WS 49
GPIO_1/MI2S_CLK 50
GPIO_2/MI2S_D0 51
GPIO_3/MI2S_D1 52
GPIO_16/ACCEL_INT_1 53
SDC2_CMD 54
SDC2_DATA0 55
SDC2_DATA1 56
SDC2_DATA2 57
SDC2_DATA3 58
SDC2_CLK 59
61 VREG_L11_2P95V
GPIO_29 63
GPIO_52 65
66
67
68
69
70
71
72
74
75
PM_PWR_ON 76
77 PM_VIB_DRV_N
USB_HS_ID 78
PMU_MPP_2_PWM 79
81 PMU_GPIO01
PM_RES_IN_N 82
VREF_BAT_THERM 84
85 VREG_L12_2P95V
86 GPIO_24
87 VBUS_USBIN
89 VCOIN
BAT_THERM 90
92 VPH_PWR
93
96 MIPI_DSI0_CLK_P
97 MIPI_DSI0_CLK_N
98 MIPI_DSI0_LANE3_P
99 MIPI_DSI0_LANE3_N
100 MIPI_DSI0_LANE2_P
101 MIPI_DSI0_LANE2_N
102 MIPI_DSI0_LANE1_P
103 MIPI_DSI0_LANE1_N
104 MIPI_DSI0_LANE0_P
105 MIPI_DSI0_LANE0_N
106 GPIO_8
107 VREG_L17_2P85V
108 GPIO_9
109 VREG_L6_1P8V
110 GPIO_10/CAM_I2C_SDA
111 GPIO_11/CAM_I2C_SCL
112 GPIO_35/MCAM_RST_N
113 GPIO_34/MCAM_STANDBY_N
115 MIPI_CSI0_LANE1_N
116 MIPI_CSI0_LANE1_P
117 MIPI_CSI0_LANE2_P
118 MIPI_CSI0_LANE2_N
119 MIPI_CSI0_CLK_N
120 MIPI_CSI0_CLK_P
121 GPIO_33
122 GPIO_26/MCAM_CLK
124 VPH_PWR
2
32
43
46
62
64
73
80
91
95
114
123
125
126
127
128
DEBUG
WCN
PDET_IN
WLAN_IO
BT/WLAN/FM SSBI
BT_STROBE
XO_G
PM8909
RF
GPS_RX_I/O
CHO_TX_I/O
CHO_RX_I/O
CHO_GP_DATA
SAW LNA SAW
JTAG
CONNECTOR
USB
T_FLASH
CARD
Touchscreen
SENSOR：
_N;12C
MIPI FOR LCM MIPI FOR Main
camera
MIPI FOR
SUB
CAMERA
CAM
_ 12C
SDC1
EBI0
EMMC_NAND
LPDDR3
AUDIO
CXO_EN （BBCLK_EN）
CXO_IN (BBCLK 19.2MHz)
SLEEP_CLK 32.768KHz
RESIN_N
PS_HOLD
SPMI_CLK
SPMI_DATA
PMIC_INT
RF_CLK1
RF_CLK2
19.2
MHz
USB
VPH_PWR
OVP
VCHG
FET&SNS
XO
19.2MHz
GPIO
[0:4]
MPP
[0:4]
BOOST_BYP_BYP
UIM_BATT_ALARM
ENTERN_LDO_CTL
GYRO_EN_PM
WLED CTL-PWM MODULE
OUTPUT
Home row (2WLE D * 20mA)
PA_THERM
VDD_RX_BIAS(1.25V)
BTB
GND 1
GPIO_25 2
NC 3
NC 4
GPIO_31 5
GPIO_32 6
GPIO_36 7
GPIO_58 8
GPIO_93 9
GPIO_94 10
GPIO_95 11
GPIO_96 12
GPIO_97 13
GPIO_110 14
GPIO_65 15
30 GND
29 GND
28 GND
27 GND
26 GND
25 GND
24 GND
23 GND
22 GND
21 GND
20 GND
19 GND
18 GND
17 CND
16 GND
GPIO_98 60
GPIO_30 64
83 PMU_GPIO02
94
SWITCH
2.4G
5G
30 5G_WIFI
88 VBATT
R=0Ω
OPT1
Disable internal
Charging
SWITCH
COUP
LER
1
IPEX-3 RF
connector
Coaxial line
48MHz
Figure1-2 SIMT1502 functional block diagram