T4 Functions - STMicroelectronics SPC572L series Reference Manual

IEEE 1149.7 Compact JTAG Test Access Port Controller (CJTAG)
60.4.5

T4 functions

•
TMSC sampling on rising edge or falling edge of TCKC
•
MScan (For test and debug)
•
OScan 0-7
•
TDIC and TDOC / Alternate pin function multiplexing (wide 4 only)
60.5 Ancillary services
60.5.1 Overview
Ancillary services are pertinent to any TAP.7 controller implemented with an RSU, such as
the CJTAG module.
Ancillary services include:
•
Resets
•
Start-up options
•
Escape sequences
•
TAPC state machine
60.5.2 Resets
The TAP.7 controller reset function expands the reset function provided by the IEEE 1149.1
standard to provide additional reset types. It supports six reset types, Type-0 – Type-5,
listed below. It can be implemented with as few as two reset types (Type-2 and Type-4), or
as many as six reset types (all types) of reset inputs: This is determined by the class and
options implemented.
1750/2058 DocID027809 Rev 4
RM0400