Datasheet

Revision History
M68HC12B Family Data Sheet, Rev. 9.1
4 Freescale Semiconductor
The following revision history table summarizes changes contained in this document. For your
convenience, the page number designators have been linked to the appropriate location.
Revision History
Date
Revision
Level
Description
Page
Number(s)
June,
2001
2.0
Figure 1-7. BDM Tool Connector — Added NC (no connect) designator to
pin 3
29
Figure 18-16. BDM Tool Connector — Added NC designator to pin 3 305
Table 14-2. Loop Mode Functions — Corrected table header, third column,
from DDRS1 to DDS1
195
WOMS bit description, fifth line, changed (via DDRS0/2)
to (via DDS0/2)
195
SSOE bit description, second line, changed DDRS7 to DDS7 205
In the table notes following the SPC0 bit description, corrected bit
designators from DDRS4, DDRS5, DDRS6, and DDRS7 to DDS4, DDS5,
DDS6, and DDS7.
205
September,
2001
3.0
Table 13-3. Prescaler Selection — Added value column and updated
prescale factors
172
19.11 EEPROM Characteristics — Corrected minimum and maximum
values for programming and erase times
313
April,
2002
4.0
Document type changed from Advance Information to Technical Data
reflecting qualification.
N/A
Figure 3-9. Condition Code Register (CCR) — Reset value for S bit
corrected from U to 1
62
January,
2003
5.0
14.2.3.3 SCI Control Register 2 — Removed erroneous reference to Port S
bit 3 in the definition for the transmitter enable bit (TE).
197
Figure 14-20. Port S Data Register (PORTS) — Removed erroneous pin
function for PS3 and PS2.
208
Reformatted to meet publication standards N/A
April,
2003
6.0
19.2 Maximum Ratings — Corrected maximum values for VDD, VDDA,
VDDX, and VIn
307
19.7 ATD Maximum Ratings — Corrected maximum values for VRH and
VRL
310
Figure 19-1. Programming Voltage Envelope — Corrected maximum values
for VFP and VDD
315
May,
2003
7.0
19.12.1 Programming Voltage Supply Envelope — Added subsection for
clarity.
315
19.12.2 Example V
FP
Protection Circuitry — Added subsection for clarity.
316
July,
2003
8.0
19.2 Maximum Ratings — Updated values 307
19.7 ATD Maximum Ratings — Updated values 310
June,
2004
9.0
Table 13-3. Prescaler Selection — Corrected prescaler factor for
values 6 and 7
183
July,
2005
9.1 Updated to meet Freescale identity guidelines. Throughout