MC9S12XET256MAG Freescale Semiconductor, MC9S12XET256MAG Datasheet - Page 825

• Manufacturer Part Number: MC9S12XET256MAG
• Description: MCU 16BIT 256K FLASH 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12XET256MAG

• Core Processor: HCS12X
• Core Size: 16-Bit
• Speed: 50MHz
• Connectivity: CAN, EBI/EMI, I²C, IrDA, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 119
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.72 V ~ 5.5 V
• Data Converters: A/D 24x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 144-LQFP
• No. Of I/o's: 119
• Eeprom Memory Size: 4KB
• Ram Memory Size: 16KB
• Cpu Speed: 50MHz
• No. Of Timers: 3
• No. Of Pwm Channels: 8
• Digital Ic Case Style: LQFP
• Rohs Compliant: Yes
• Processor Series: S12XE
• Core: HCS12
• Data Bus Width: 16 bit
• Data Ram Size: 16 KB
• Interface Type: CAN, SCI, SPI
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 119
• Number Of Timers: 25
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWHCS12
• Development Tools By Supplier: KIT33812ECUEVME, EVB9S12XEP100, DEMO9S12XEP100
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 24 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

23.3.2.4
The VREGAPITR register allows to trim the API timeout period.
23.3.2.5
The VREGAPIRH and VREGAPIRL register allows the configuration of the VREG_3V3 autonomous
periodical interrupt rate.
Freescale Semiconductor
0x02F3
Because of an order from the United States International Trade Commission, BGA-packaged product lines and partnumbers
APITR[5:0]
1. Reset value is either 0 or preset by factory. See Section 1 (Device Overview) for details.
Reset
indicated here currently are not available from Freescale for import or sale in the United States prior to September 2010
Field
APIE
APIF
Field
7–2
1
0
W
R
APITR5
Autonomous Periodical Interrupt Enable Bit
0 API interrupt request is disabled.
1 API interrupt will be requested whenever APIF is set.
Autonomous Periodical Interrupt Flag — APIF is set to 1 when the in the API configured time has elapsed.
This flag can only be cleared by writing a 1 to it. Clearing of the flag has precedence over setting.
Writing a 0 has no effect. If enabled (APIE = 1), APIF causes an interrupt request.
0 API timeout has not yet occurred.
1 API timeout has occurred.
Autonomous Periodical Interrupt Period Trimming Bits — See
Autonomous Periodical Interrupt Trimming Register (VREGAPITR)
0
Autonomous Periodical Interrupt Rate High and Low Register
(VREGAPIRH / VREGAPIRL)
Figure 23-5. Autonomous Periodical Interrupt Trimming Register (VREGAPITR)
7
1
= Unimplemented or Reserved
APITR4
APITR[5]
APITR[4]
APITR[3]
APITR[2]
APITR[1]
APITR[0]
Table 23-5. VREGAPICL Field Descriptions (continued)
0
6
1
Bit
Table 23-6. VREGAPITR Field Descriptions
MC9S12XE-Family Reference Manual Rev. 1.23
Table 23-7. Trimming Effect of APIT
Increases period
Decreases period less than APITR[5] increased it
Decreases period less than APITR[4]
Decreases period less than APITR[3]
Decreases period less than APITR[2]
Decreases period less than APITR[1]
APITR3
0
5
1
APITR2
0
4
1
Trimming Effect
Description
Description
APITR1
0
3
1
Chapter 23 Voltage Regulator (S12VREGL3V3V1)
Table 23-7
APITR0
0
2
1
for trimming effects.
0
0
1
0
0
0
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