MC9S08JM32CGT Freescale Semiconductor, MC9S08JM32CGT Datasheet - Page 60
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MC9S08JM32CGT
Manufacturer Part Number
MC9S08JM32CGT
Description
IC MCU 8BIT 32K FLASH 48-QFN
Manufacturer
Freescale Semiconductor
Series
HCS08r
Datasheet
1.MC9S08JM32CLD.pdf
(388 pages)
Specifications of MC9S08JM32CGT
Core Processor
HCS08
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, LIN, SCI, SPI, USB
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
37
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
48-QFN
Processor Series
S08JM
Core
HCS08
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
SCI/SPI
Maximum Clock Frequency
24 MHz
Number Of Programmable I/os
37
Number Of Timers
8
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWS08
Development Tools By Supplier
DEMOJM, DEMOJMSKT, DEMOFLEXISJMSD, DEMO9S08JM16
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 12-bit
Controller Family/series
HCS08
No. Of I/o's
37
Ram Memory Size
2KB
Cpu Speed
48MHz
No. Of Timers
2
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Chapter 4 Memory
4.7.2
During reset, the contents of the nonvolatile location NVOPT are copied from flash into FOPT. Bits 5
through 2 are not used and always read 0. This register may be read at any time, but writes have no meaning
or effect. To change the value in this register, erase and reprogram the NVOPT location in flash memory
as usual and then issue a new MCU reset.
60
SEC0[1:0]
FNORED
200 kHz
150 kHz
24 MHz
20 MHz
10 MHz
Reset
KEYEN
8 MHz
4 MHz
2 MHz
1 MHz
Field
f
Bus
1:0
7
6
W
R
KEYEN
Flash Options Register (FOPT and NVOPT)
Backdoor Key Mechanism Enable — When this bit is 0, the backdoor key mechanism cannot be used to
disengage security. The backdoor key mechanism is accessible only from user (secured) firmware. BDM
commands cannot be used to write key comparison values that would unlock the backdoor key. For more detailed
information about the backdoor key mechanism, refer to
0 No backdoor key access allowed.
1 If user firmware writes an 8-byte value that matches the nonvolatile backdoor key (NVBACKKEY through
Vector Redirection Disable — When this bit is 1, then vector redirection is disabled.
0 Vector redirection enabled.
1 Vector redirection disabled.
Security State Code — This 2-bit field determines the security state of the MCU as shown in
the MCU is secure, the contents of RAM and flash memory cannot be accessed by instructions from any
unsecured source including the background debug interface. For more detailed information about security, refer
to
7
Section 4.6,
NVBACKKEY+7 in that order), security is temporarily disengaged until the next MCU reset.
(Binary)
PRDIV8
= Unimplemented or Reserved
1
1
0
0
0
0
0
0
0
FNORED
“Security.”
6
This register is loaded from nonvolatile location NVOPT during reset.
Table 4-8. FOPT Register Field Descriptions
Figure 4-6. Flash Options Register (FOPT)
Table 4-7. Flash Clock Divider Settings
MC9S08JM60 Series Data Sheet, Rev. 3
0
5
DIV5:DIV0
(Decimal)
14
12
49
39
19
9
4
0
0
0
4
Description
Section 4.6,
192.3 kHz
3
0
200 kHz
200 kHz
200 kHz
200 kHz
200 kHz
200 kHz
200 kHz
150 kHz
f
FCLK
“Security.”
2
0
Program/Erase Timing Pulse
(5 μs Min, 6.7 μs Max)
Freescale Semiconductor
SEC01
1
5.2 μs
6.7 μs
5 μs
5 μs
5 μs
5 μs
5 μs
5 μs
5 μs
Table
4-9. When
SEC00
0
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