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부품번호 | M68HC12B 기능 |
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기능 | Microcontrollers | ||
제조업체 | Freescale Semiconductor | ||
로고 | |||
M68HC12B Family
Data Sheet
M68HC12
Microcontrollers
www.DataSheet4U.com
M68HC12B
Rev. 9.1
07/2005
freescale.com
Revision History
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
June,
2001
September,
2001
April,
2002
January,
2003
April,
2003
May,
2003
July,
2003
June,
2004
July,
2005
Revision
Level
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
9.1
Description
Figure 1-7. BDM Tool Connector — Added NC (no connect) designator to
pin 3
Figure 18-16. BDM Tool Connector — Added NC designator to pin 3
Table 14-2. Loop Mode Functions — Corrected table header, third column,
from DDRS1 to DDS1
WOMS bit description, fifth line, changed (via DDRS0/2)
to (via DDS0/2)
SSOE bit description, second line, changed DDRS7 to DDS7
In the table notes following the SPC0 bit description, corrected bit
designators from DDRS4, DDRS5, DDRS6, and DDRS7 to DDS4, DDS5,
DDS6, and DDS7.
Table 13-3. Prescaler Selection — Added value column and updated
prescale factors
19.11 EEPROM Characteristics — Corrected minimum and maximum
values for programming and erase times
Document type changed from Advance Information to Technical Data
reflecting qualification.
Figure 3-9. Condition Code Register (CCR) — Reset value for S bit
corrected from U to 1
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).
Figure 14-20. Port S Data Register (PORTS) — Removed erroneous pin
function for PS3 and PS2.
Reformatted to meet publication standards
19.2 Maximum Ratings — Corrected maximum values for VDD, VDDA,
VDDX, and VIn
19.7 ATD Maximum Ratings — Corrected maximum values for VRH and
VRL
Figure 19-1. Programming Voltage Envelope — Corrected maximum values
for VFP and VDD
19.12.1 Programming Voltage Supply Envelope — Added subsection for
clarity.
19.12.2 Example VFP Protection Circuitry — Added subsection for clarity.
19.2 Maximum Ratings — Updated values
19.7 ATD Maximum Ratings — Updated values
Table 13-3. Prescaler Selection — Corrected prescaler factor for
values 6 and 7
Updated to meet Freescale identity guidelines.
Page
Number(s)
29
305
195
195
205
205
172
313
N/A
62
197
208
N/A
307
310
315
315
316
307
310
183
Throughout
M68HC12B Family Data Sheet, Rev. 9.1
4 Freescale Semiconductor
4페이지 Table of Contents
Chapter 1
General Description
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
1.2 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1.3 Slow-Mode Clock Divider Advisory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
1.4 Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
1.5 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
1.6 Pinout and Signal Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
1.6.1
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
1.6.2
Power Supply Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
1.6.2.1
1.6.2.2
1.6.2.3
1.6.2.4
1.6.2.5
1.6.3
VDD and VSS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
VDDX and VSSX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
VDDA and VSSA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
VRH and VRL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
VFP (MC68HC912B32 and MC68HC912BC32 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Signal Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
1.6.3.1
XTAL and EXTAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
1.6.3.2
ECLK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
1.6.3.3
RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
1.6.3.4
IRQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
1.6.3.5
XIRQ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1.6.3.6
SMODN, MODA, and MODB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1.6.3.7
BKGD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1.6.3.8
ADDR15–ADDR0 and DATA15–DATA0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
1.6.3.9
R/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
1.6.3.10 LSTRB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
1.6.3.11 IPIPE1 and IPIPE0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
1.6.3.12 DBE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
1.6.4
Port Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
1.6.4.1
Port A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
1.6.4.2
Port B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
1.6.4.3
Port E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
1.6.4.4
Port DLC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
1.6.4.5
Port CAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
1.6.4.6
Port AD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
1.6.4.7
Port P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
1.6.4.8
Port T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
1.6.4.9
Port S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
1.6.5
Port Pullup, Pulldown, and Reduced Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Freescale Semiconductor
M68HC12B Family Data Sheet, Rev. 9.1
7
7페이지 | |||
구 성 | 총 30 페이지수 | ||
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부품번호 | 상세설명 및 기능 | 제조사 |
M68HC12 | Advance Information - Rev 4.0 | Motorola Semiconductors |
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DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |