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RELEASE
Revision B1
©Serious Integrated, Inc.
43
Signals on this connector are as follows:
Signal
Description
Pin
+VEXT
Main input power. See
Power Supplies
.
1
GND
Ground
2
TRST#
MCU JTAG TRST#
3
RESET#
SIM RESET# input (weakly pulled high on SIM)
4
TCK
MCU JTAG TCK
5
PJ15/TXD7-UART1_TX
Aux UART Tx
6
TMS
MCU JTAG TMS
7
PE7/RXD7-UART1_RX
Aux UART Rx
8
TDO
MCU JTAG/UART TDO
9
ASEBRK#
MCU JTAG ASEBRK#
10
TDI
MCU JTAG/UART TDI
11
ASEMD#
MCU JTAG ASEMD#
12
+VEXT
Main input power. See
Power Supplies
.
13
GND
Ground
14
Do no connect
15
Do not connect
16
PB18/SSL00
SPI Serial FLASH Slave Select
17
PF2-SFRST#
Serial FLASH RESET# (weakly pulled high)
18
PJ23/IRQ3
19
PJ12-PH1/AN1
20
PB17/RSPCK0
SPI RSPCK
21
PE5/SDA2
I2C Data Channel 0 (no on-SIM devices share this channel)
22
PB19/MOSI0
SPI MOSI
23
PE4/SCL2
I2C Clock Channel 0 (no on-SIM devices share this channel)
24
PB20/MISO0
SPI MISO
25
DAC_OUT
10 bit DAC output 0 to 3.3V
26
+VEXT
Main input power. See
Power Supplies
.
27
GND
Ground
28
USBF_DP
USB Device Data- (also connected to Micro B if present)
29
PB22/A22/CTX2/IETXD/CS4#
CAN Transmit
30
USBF_DM
USB Device Data- (also connected to Micro B if present)
31
PB21/A21/CRX2/IERXD
CAN Receive
32
USBF_VBUS
USB Device (“Function”) Power
status input to SIM
33
USBH_VUSB
USB Host Power
output from SIM
34
USBH_DP
USB Host Data+ (also connected to USB A if present)
35
PJ14/TXD6-UART0_TX
Primary UART Transmit
36
USBH_DM
USB Host Data- (also connected to USB A if present)
37
PE6/RXD6-UART0_RX
Primary UART Receive
38
PJ31/TX_CONTROL
Primary UART Transmit Enable (for half duplex etc.)
39
PE2/SCL1
I2C Clock (shared with I2C SIM devices)
40
PE3/SDA1
I2C Data (shared with I2C SIM devices)
41
PJ22/IRQ2-PH5/AN5
42
PJ13-PH2/AN2
Connected to both MCU pins; do not drive both simultaneously.
43
Do not connect
44
+3V3
SIM gen3.3VDC output; see
+3.3V Regulation
45
PWRDWN#
SIM Power Down, weakly pulled high; see
Turning SIM535 Off: PWRDWN#
46
+VEXT
Main input power. See
Power Supplies
.
47
GND
Ground
48
PF4/SSISCK0
I2S Clock
49
PF7/SSIRXD0
I2S Rx
50
Do not connect
51
PF5/SSIWS0
I2S
52
Do not connect
53
Do not connect
54
Do not connect
55
PF6/SSITXD0
I2S Tx
56
PE1/AUDIO_CLK
Audio Input Clock
57
Do not connect
58
+VEXT
Main input power. See
Power Supplies
.
59
GND
Ground
60
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