S912XET256J2VAGR Freescale Semiconductor, S912XET256J2VAGR Datasheet - Page 267
S912XET256J2VAGR
Manufacturer Part Number
S912XET256J2VAGR
Description
16-bit Microcontrollers - MCU Watchdog OSC/Timer -40 C to + 105 C HCS12X MCU SPI
Manufacturer
Freescale Semiconductor
Datasheet
1.S912XEQ512J3CAGR.pdf
(1324 pages)
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
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6.3.2.1
Read: Anytime
Write: Anytime
6.3.2.2
Read: Anytime
Write: Anytime
Freescale Semiconductor
Address: 0x0121
Address: 0x0126
IVB_ADDR[7:0]
XILVL[2:0]
Reset
Reset
Field
2–0
Field
7–0
W
W
R
R
XGATE Interrupt Priority Level — The XILVL[2:0] bits configure the shared interrupt level of the XGATE
interrupts coming from the XGATE module. Out of reset the priority is set to the lowest active level (“1”).
Note: If the XGATE module is not available on the device, write accesses to this register are ignored and read
Interrupt Vector Base Register (IVBR)
XGATE Interrupt Priority Configuration Register (INT_XGPRIO)
1
0
0
7
7
Interrupt Vector Base Address Bits — These bits represent the upper byte of all vector addresses. Out of
reset these bits are set to 0xFF (i.e., vectors are located at 0xFF10–0xFFFE) to ensure compatibility to
previous S12 microcontrollers.
Note: A system reset will initialize the interrupt vector base register with “0xFF” before it is used to determine
Note: If the BDM is active (i.e., the CPU is in the process of executing BDM firmware code), the contents of
Figure 6-4. XGATE Interrupt Priority Configuration Register (INT_XGPRIO)
accesses to this register will return all 0.
the reset vector address. Therefore, changing the IVBR has no effect on the location of the three reset
vectors (0xFFFA–0xFFFE).
IVBR are ignored and the upper byte of the vector address is fixed as “0xFF”.
= Unimplemented or Reserved
1
0
0
6
6
Figure 6-3. Interrupt Vector Base Register (IVBR)
MC9S12XE-Family Reference Manual Rev. 1.25
Table 6-5. INT_XGPRIO Field Descriptions
Table 6-4. IVBR Field Descriptions
1
0
0
5
5
IVB_ADDR[7:0]
1
0
0
4
4
Description
Description
1
0
0
3
3
1
0
2
2
Chapter 6 Interrupt (S12XINTV2)
XILVL[2:0]
1
0
1
1
1
1
0
0
267
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