Hardware
7
SWRU521A – May 2017 – Revised December 2017
Copyright © 2017, Texas Instruments Incorporated
IWR1642 Evaluation Module (IWR1642BOOST) Single-Chip mmWave
Sensing Solution
and
provide the connector-pin information.
Table 1. J5 Connector Pin
Pin Number
Description
Pin Number
Description
1
AR_NERR_OUT
2
GND
3
AR_NERRIN
4
DSS_LOGGER (AR_DP7)
5
AR_MCUCLKOUT
6
AR_CS1
7
NC
8
AR_GPIO_1
9
AR_MSS_LOGGER
10
AR_NRST_MCU
11
AR_WARMRST
12
AR_MOSI1
13
AR_BSS_LOGGER
14
AR_MISO1
15
MCU_SOP2
16
AR_HOSTINTR1
17
MCU_SOP1
18
AR_GPIO_2
19
MCU_SOP0
20
NC
(1)
Voltage input to the GPADC available on the IWR1642.
(2)
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.
(3)
Controls the onboard PMIC enable. The MCU can use this to shut down the PMIC and IWR device during the periods it does not
use the IWR device and save power. The power up of the PMIC takes approximately 5 ms once the enable signal is made high.
Table 2. J6 Connector Pin
Pin Number
Description
Pin Number
Description
1
3V3
2
MCU_5v (5V_IN)
3
NC
4
GND
5
AR_RS232TX
6
AR_ANATEST1
(1)
7
AR_RS232RX
8
AR_ANATEST2
(1)
9
AR_SYNC_IN
10
AR_ANATEST3
(1)
11
NC
12
AR_ANATEST4
(1)
13
AR_SPICLK1
14
PGOOD (onboard VIO)
(2)
15
AR_GPIO_0
16
PMIC_EN1
(3)
17
AR_SCL
18
AR_SYNC_OUT_SOP1
19
AR_SDA
20
AR_PMIC_CLKOUT_SOP2