MC9S12E128CPVE Freescale Semiconductor, MC9S12E128CPVE Datasheet - Page 92

IC MCU 128K FLASH 25MHZ 112-LQFP

MC9S12E128CPVE

Manufacturer Part Number
MC9S12E128CPVE
Description
IC MCU 128K FLASH 25MHZ 112-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheets

Specifications of MC9S12E128CPVE

Core Processor
HCS12
Core Size
16-Bit
Speed
25MHz
Connectivity
EBI/EMI, I²C, SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
91
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.35 V ~ 2.75 V
Data Converters
A/D 16x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
112-LQFP
Processor Series
S12E
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
8 KB
Interface Type
SCI/SPI
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
92
Number Of Timers
12
Operating Supply Voltage
3.135 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Minimum Operating Temperature
- 40 C
On-chip Adc
16-ch x 10-bit
On-chip Dac
2-ch x 8-bit
Controller Family/series
HCS12/S12X
No. Of I/o's
90
Ram Memory Size
8KB
Cpu Speed
25MHz
No. Of Timers
4
Embedded Interface Type
I2C, SCI, SPI
Rohs Compliant
Yes
For Use With
M68EVB912E128 - BOARD EVAL FOR MC9S12E128/64
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 2 128 Kbyte Flash Module (FTS128K1V1)
The security function in the Flash module is described in
2.3.2.3
This register is reserved for factory testing and is not accessible to the user.
All bits read 0 and are not writable.
92
Module Base + 0x0002
KEYEN[1:0]
SEC[1:0]
NV[5:2]
Reset
Field
7–6
5–2
1–0
W
R
Backdoor Key Security Enable Bits — The KEYEN[1:0] bits define the enabling of the backdoor key access
to the Flash module as shown in
Nonvolatile Flag Bits — The NV[5:2] bits are available to the user as nonvolatile flags.
Flash Security Bits — The SEC[1:0] bits define the security state of the MCU as shown in
module is unsecured using backdoor key access, the SEC[1:0] bits are forced to 1:0.
RESERVED1
0
0
7
= Unimplemented or Reserved
0
0
6
1
Preferred KEYEN state to disable Backdoor Key Access.
1
KEYEN[1:0]
SEC[1:0]
Preferred SEC state to set MCU to secured state.
01
01
00
10
11
00
10
11
Table 2-4. FSEC Field Descriptions
1
1
Table 2-6. Flash Security States
MC9S12E128 Data Sheet, Rev. 1.07
Table 2-5. Flash KEYEN States
0
0
5
Table
Figure 2-6. RESERVED1
2-5.
Status of Backdoor Key Access
0
0
4
Status of Security
Description
Unsecured
Secured
Secured
Secured
DISABLED
DISABLED
DISABLED
ENABLED
Section 2.4.3, “Flash Module
0
0
3
0
0
2
Freescale Semiconductor
Table
0
0
1
Security”.
2-6. If the Flash
0
0
0

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