MC9S12XA512CAG Freescale Semiconductor, MC9S12XA512CAG Datasheet - Page 432
![IC MCU 512K FLASH 144-LQFP](/photos/12/38/123875/mc9s12xa512cag_sml.jpg)
MC9S12XA512CAG
Manufacturer Part Number
MC9S12XA512CAG
Description
IC MCU 512K FLASH 144-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Specifications of MC9S12XA512CAG
Core Processor
HCS12X
Core Size
16-Bit
Speed
80MHz
Connectivity
EBI/EMI, I²C, IrDA, LIN, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
119
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
2.35 V ~ 5.5 V
Data Converters
A/D 24x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
144-LQFP
Processor Series
S12XA
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
32 KB
Interface Type
CAN, I2C, SCI, SPI
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
119
Number Of Timers
12
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
EVB9S12XDP512E
Minimum Operating Temperature
- 40 C
On-chip Adc
2 (10 bit, 24 Channel)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Manufacturer
Quantity
Price
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Part Number:
MC9S12XA512CAG
Manufacturer:
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Quantity:
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Part Number:
MC9S12XA512CAG
Manufacturer:
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Chapter 10 Freescale’s Scalable Controller Area Network (S12MSCANV3)
1
2
10.3.2.6
This register contains the interrupt enable bits for the interrupt flags described in the CANRFLG register.
Read: Anytime
Write: Anytime when not in initialization mode
432
Redundant Information for the most critical CAN bus status which is “bus-off”. This only occurs if the Tx error counter exceeds
a number of 255 errors. Bus-off affects the receiver state. As soon as the transmitter leaves its bus-off state the receiver state
skips to RxOK too. Refer also to TSTAT[1:0] coding in this register.
To ensure data integrity, do not read the receive buffer registers while the RXF flag is cleared. For MCUs with dual CPUs,
reading the receive buffer registers while the RXF flag is cleared may result in a CPU fault condition.
OVRIF
Field
RXF
1
0
Reset:
2
W
R
Overrun Interrupt Flag — This flag is set when a data overrun condition occurs. If not masked, an error interrupt
is pending while this flag is set.
0
1
Receive Buffer Full Flag — RXF is set by the MSCAN when a new message is shifted in the receiver FIFO.
This flag indicates whether the shifted buffer is loaded with a correctly received message (matching identifier,
matching cyclic redundancy code (CRC) and no other errors detected). After the CPU has read that message
from the RxFG buffer in the receiver FIFO, the RXF flag must be cleared to release the buffer. A set RXF flag
prohibits the shifting of the next FIFO entry into the foreground buffer (RxFG). If not masked, a receive interrupt
is pending while this flag is set.
0
1
MSCAN Receiver Interrupt Enable Register (CANRIER)
WUPIE
The CANRIER register is held in the reset state when the initialization mode
is active (INITRQ=1 and INITAK=1). This register is writable when not in
initialization mode (INITRQ=0 and INITAK=0).
The RSTATE[1:0], TSTATE[1:0] bits are not affected by initialization
mode.
0
7
No data overrun condition
A data overrun detected
No new message available within the RxFG
The receiver FIFO is not empty. A new message is available in the RxFG
Figure 10-9. MSCAN Receiver Interrupt Enable Register (CANRIER)
Table 10-9. CANRFLG Register Field Descriptions (continued)
CSCIE
0
6
MC9S12XDP512 Data Sheet, Rev. 2.21
RSTATE1
0
5
RSTATE0
NOTE
0
4
Description
TSTATE1
3
0
TSTATE0
0
2
Freescale Semiconductor
OVRIE
0
1
RXFIE
0
0
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