STM32W108B-SK STMicroelectronics, STM32W108B-SK Datasheet - Page 183

• Manufacturer Part Number: STM32W108B-SK
• Description: STARTER KIT FOR STM32W108
• Manufacturer: STMicroelectronics
• Series: STM32r
• Type: MCUr

Specifications of STM32W108B-SK

• Featured Product: STM32 Cortex-M3 Companion Products
• Contents: Board
• Silicon Manufacturer: ST Micro
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: STM32
• Silicon Family Name: STM32W108xx
• Kit Contents: Board
• Features: IEEE
• Mfg Application Notes: STM32W108 Adjacent Channel Rejection Measurements
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: *
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

STM32W108CB, STM32W108HB
13.1
Note:
STM32W108 JTAG TAP connection
The STM32W108 MCU integrates two serially-connected JTAG TAPs in the following order;
the TMC TAP dedicated for Test (IR is 4-bit wide) and the Cortex™-M3 TAP (IR is 4-bit
wide).
To access the TAP of the Cortex-M3 for debug purposes:
1.
2.
3.
Important: Once Serial-Wire is selected using the dedicated ARM JTAG sequence, the
TMC TAP is automatically disabled (JTMS forced high).
First, it is necessary to shift the BYPASS instruction of the TMC TAP.
Then, for each IR shift, the scan chain contains 8 bits (= 4 + 4) and the unused TAP
instruction must be shifted in using the BYPASS instruction.
For each data shift, the unused TAP, which is in BYPASS mode, adds 1 extra data bit in
the data scan chain.
Doc ID 16252 Rev 8
Debug support
183/209