MC68HC705T16 MOTOROLA [Motorola, Inc], MC68HC705T16 Datasheet - Page 111

• Manufacturer Part Number: MC68HC705T16
• Description: High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit
• Manufacturer: MOTOROLA [Motorola, Inc]

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