MM912F634DV1AER2 Freescale Semiconductor, MM912F634DV1AER2 Datasheet - Page 279
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MM912F634DV1AER2
Manufacturer Part Number
MM912F634DV1AER2
Description
16-bit Microcontrollers - MCU DUAL LS/HS SWITCH W. LIN
Manufacturer
Freescale Semiconductor
Datasheet
1.MM912G634DV1AE.pdf
(338 pages)
Specifications of MM912F634DV1AER2
Rohs
yes
Core
HCS12
Processor Series
MM912F634
Data Bus Width
16 bit
Maximum Clock Frequency
20 MHz
Program Memory Size
32 KB
Data Ram Size
2 KB
On-chip Adc
Yes
Operating Supply Voltage
4.5 V to 5.5 V
Operating Temperature Range
- 40 C to + 105 C
Package / Case
LQFP-48
Mounting Style
SMD/SMT
A/d Bit Size
10 bit
A/d Channels Available
15
Interface Type
SPI
Maximum Operating Temperature
+ 105 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
6
Number Of Timers
1
Program Memory Type
Flash
Supply Voltage - Max
4.5 V
Supply Voltage - Min
4.5 V
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Functional Description and Application Information
Table 366. FSTAT Field Descriptions (continued)
4.36.3.4.1
The FCMD register is the Flash command register.
Table 367. Flash Command Register (FCMD)
All CMDB bits are readable and writable during a command write sequence while bit 7 reads 0 and is not writable.
Table 368. FCMD Field Descriptions
Freescale Semiconductor
0x0106
CMDB[6:0]
Reset
BLANK
W
R
Field
Field
FAIL
6:0
2
1
Flag Indicating the Erase Verify Operation Status — When the CCIF flag is set after completion of an erase verify command,
the BLANK flag indicates the result of the erase verify operation. The BLANK flag is cleared by the Flash module when CBEIF
is cleared as part of a new valid command write sequence. Writing to the BLANK flag has no effect on BLANK except in special
mode where the BLANK flag can be cleared by writing a 1 to BLANK.
0 Flash block verified as not erased.
1 Flash block verified as erased.
Flag Indicating a Failed Flash Operation — The FAIL flag will set if the erase verify operation fails (Flash block verified as
not erased). Writing a 0 to the FAIL flag has no effect on FAIL. The FAIL flag is cleared by writing a 1 to FAIL.
0 Flash operation completed without error.
1 Flash operation failed.
Flash Command — Valid Flash commands in normal mode are shown in
listed in
0
0
7
Flash Command Register (FCMD)
Table 369
0
6
in normal mode sets the ACCERR flag in the FSTAT register.
Table 369. Valid Flash Command List
CMDB[6:0]
0x05
0x20
0x25
0x40
0x41
5
0
0
4
Description
Description
NVM Command
Burst Program
Sector Erase
Erase Verify
Mass Erase
Program
CMDB[6:0]
0
3
Table
32 kbyte Flash Module (S12SFTSR32KV1)
369. Writing any command other than those
0
2
1
0
MM912F634
0
0
279
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