Operating Modes; Self-Check Report - Motorola MC68HC05T16 Technical Data Manual

The MC68HC05T16/ MC68HC705T16 MCU has two modes of operation, the User Mode and the
Self-Check/ Bootstrap Mode. Figure 13-1 shows the flowchart of entry to these two modes, and
Table 13-1 shows operating mode selection.
MC68HC05T16
13

OPERATING MODES

5V
RESET
9V N
IRQ
?
Y
PC2 = V ?
DD
Y
Note:
SELF-CHECK/
Self-check mode is for MC68HC05T16
BOOTSTRAP
Bootstrap mode is for MC68HC705T16
MODE
Figure 13-1 Flowchart of Mode Entering
OPERATING MODES
USER MODE
(NORMAL MODE)
13
TPG
MOTOROLA
13-1