S912XET256J2VAGR Freescale Semiconductor, S912XET256J2VAGR Datasheet - Page 1155

• Manufacturer Part Number: S912XET256J2VAGR
• Description: 16-bit Microcontrollers - MCU Watchdog OSC/Timer -40 C to + 105 C HCS12X MCU SPI
• Manufacturer: Freescale Semiconductor

Specifications of S912XET256J2VAGR

• Core: HCS12X
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 16 KB
• On-chip Adc: Yes
• Package / Case: LQFP
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• A/d Channels Available: 24
• Interface Type: CAN, SCI, SPI
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 119
• Number Of Timers: 25
• Program Memory Type: Flash
• Supply Voltage - Max: 1.98 V, 2.9 V, 5.5 V
• Supply Voltage - Min: 1.72 V, 2.7 V, 3.13 V

The security function in the Flash module is described in
29.3.2.3
The FCCOBIX register is used to index the FCCOB register for Flash memory operations.
CCOBIX bits are readable and writable while remaining bits read 0 and are not writable.
29.3.2.4
The FECCRIX register is used to index the FECCR register for ECC fault reporting.
ECCRIX bits are readable and writable while remaining bits read 0 and are not writable.
Freescale Semiconductor
CCOBIX[1:0]
Offset Module Base + 0x0002
Offset Module Base + 0x0003
Reset
Reset
Field
2–0
W
W
R
R
Flash CCOB Index Register (FCCOBIX)
Flash ECCR Index Register (FECCRIX)
0
0
0
0
7
Common Command Register Index— The CCOBIX bits are used to select which word of the FCCOB register
array is being read or written to. See
for more details.
7
= Unimplemented or Reserved
= Unimplemented or Reserved
0
0
0
0
6
6
1. Preferred SEC state to set MCU to secured state.
Figure 29-7. FCCOB Index Register (FCCOBIX)
SEC[1:0]
Figure 29-8. FECCR Index Register (FECCRIX)
MC9S12XE-Family Reference Manual Rev. 1.25
Table 29-13. FCCOBIX Field Descriptions
00
01
10
11
Table 29-12. Flash Security States
0
0
0
0
5
5
Section 29.3.2.11, “Flash Common Command Object Register
0
0
0
0
4
4
Status of Security
UNSECURED
Description
SECURED
SECURED
SECURED
Section
Chapter 29 1024 KByte Flash Module (S12XFTM1024K5V2)
0
0
0
0
3
3
(1)
29.5.
0
0
2
2
CCOBIX[2:0]
ECCRIX[2:0]
0
0
1
1
(FCCOB),”
0
0
0
0
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