Debug Probes Hardware and Software
29
SLAU647L – July 2015 – Revised February 2018
Copyright © 2015–2018, Texas Instruments Incorporated
MSP Debuggers
5.6.6.3
SimpleLink MSP432 MCUs
lists the specifications for the MSP-FET interface to MSP432 microcontrollers.
Table 9. JTAG and SWD Interface Specifications
JTAG and SWD Interface, Electrical
Power supply
USB powered,
200 mA (max)
Target output voltage
VCC_TOOL
1.8 V to 3.6 V
Selectable in 0.1-V steps. VCC_TOOL available from JTAG pin 2.
Target output current
100 mA (max)
Current supplied through JTAG pin 2
Target output overcurrent
detection level
160 mA (max)
JTAG signal overcurrent
detection level
30 mA (max)
Total current supplied through JTAG pins 1, 3, 5, 7, 8, 10, 11, 12, 13, 14
External target supply
Supported
(1.8 V to 3.6 V)
Connect external target voltage VCC_TARGET to JTAG pin 4. JTAG and
SBW signals are regulated to external target voltage ±100 mV.
JTAG and SWD Interface, Timing
JTAG clock speed
10 MHz (max)
Protocol speed selectable by software
SWD clock speed
3 MHz (max)
Protocol speed selectable by software. System limitations due to external RC
components on reset pin might apply.
JTAG and SWD Interface, Speed
Flash write speed (JTAG)
Up to 70 kB/s
Flash write speed (SWD)
Up to 22 kB/s
