Hardware
9
SWRU521C – May 2017 – Revised May 2020
Copyright © 2017–2020, Texas Instruments Incorporated
IWR1642 Evaluation Module (IWR1642BOOST) Single-Chip mmWave
Sensing Solution
(1)
Indicates the state of the onboard VIO supply for the IWR device coming from the onboard PMIC. A HIGH on the PGOOD signal (3.3 V)
indicates the supply is stable. Because the I/Os are not failsafe, the MCU must not drive any I/O signals to the IWR device before this I/O
supply is stable to avoid leakage current into the I/Os.
Table 3. J1 Connector Pin
Pin Number
Description
Pin Number
Description
1
5V
2
5V_IN
3
5V
4
AR_TDO_SOP0
5
AR_TDI
6
AR_TCK
7
AR_CS1
8
AR_TMS
9
AR_SPICLK1
10
AR_HOSTINTR1
11
AR_MOSI1
12
AR_MISO1
13
PGOOD (onboard VIO)
(1)
14
AR_NERR_OUT
15
AR_DMM_CLK
16
AR_SYNC_IN
17
AR_DMM_SYNC
18
GND
19
AR_DP0
20
NC
21
AR_DP1
22
NC
23
AR_DP2
24
GND
25
AR_DP3
26
AR_LVDS_FRCLKP
27
AR_DP4
28
AR_LCDS_FRCLKM
29
AR_DP5
30
GND
31
AR_DP6
32
NC
33
AR_DP7
34
NC
35
AR_DP8
36
GND
37
AR_DP9
38
NC
39
AR_DP10
40
NC
41
AR_DP11
42
GND
43
AR_DP12
44
AR_LVDS_CLKP
45
AR_DP13
46
AR_LVDS_CLKM
47
AR_DP14
48
GND
49
AR_DP15
50
AR_LVDS_1P
51
AR_SDA
52
AR_LVDS_1M
53
AR_SCL
54
GND
55
AR_RS232RX
56
AR_LVDS_0P
57
AR_RS232TX
58
AR_LVDS_0M
59
AR_NRST_MCU
60
GND