Analog Devices ADSP-BF53x Blackfin Reference page 248

Instruction Test Registers
The following figures describe the
• Figure 6-6, "Instruction Test Command Register," on page 6-21
• Figure 6-7, "Instruction Test Data 1 Register," on page 6-22
• Figure 6-8, "Instruction Test Data 0 Register," on page 6-23
Access to these registers is possible only in Supervisor or Emulation mode.
When writing to
first, then the
ITEST_COMMAND
reverse the sequence—read the
registers.
ITEST_DATAx
6-20 ADSP-BF53x/BF56x Blackfin Processor Programming Reference
ITEST
registers, always write to the
ITEST
register. When reading from
ITEST_COMMAND
registers:
ITEST_DATAx
ITEST
register first, then the
registers
registers,