MC9S12XET256CAG Freescale Semiconductor, MC9S12XET256CAG Datasheet - Page 827

• Manufacturer Part Number: MC9S12XET256CAG
• Description: MCU 16BIT 256K FLASH 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12XET256CAG

• 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 ~ 85°C
• Package / Case: 144-LQFP
• Processor Series: S12XE
• Core: HCS12
• 3rd Party Development Tools: EWHCS12
• Development Tools By Supplier: KIT33812ECUEVME, EVB9S12XEP100, DEMO9S12XEP100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The period can be calculated as follows depending of APICLK:
23.3.2.6
The Reserved 06 is reserved for test purposes.
23.3.2.7
The VREGHTTR register allows to trim the VREG temperature sense.
Freescale Semiconductor
0x02F6
0x02F7
Because of an order from the United States International Trade Commission, BGA-packaged product lines and partnumbers
Fiption
1. Reset value is either 0 or preset by factory. See Section 1 (Device Overview) for details.
HTTR[3:0]
HTOEN
Reset
Reset
indicated here currently are not available from Freescale for import or sale in the United States prior to September 2010
Field
3–0
7
W
W
R
R
Period = 2*(APIR[15:0] + 1) * 0.1 ms or period = 2*(APIR[15:0] + 1) * bus clock period
HTOEN
High Temperature Offset Enable Bit — If set the temperature sense offset is enabled
0 The temperature sense offset is disabled
1 The temperature sense offset is enabled
Reserved 06
High Temperature Trimming Register (VREGHTTR)
High Temperature Trimming Bits — See
0
0
0
7
7
1. When trimmed within specified accuracy. See electrical specifications for details.
Table 23-9. Selectable Autonomous Periodical Interrupt Periods (continued)
APICLK
= Unimplemented or Reserved
= Unimplemented or Reserved
1
HTTR[3]
0
0
0
0
6
6
Bit
MC9S12XE-Family Reference Manual Rev. 1.23
Table 23-10. VREGHTTR field descriptions
Increases V
APIR[15:0]
5
0
0
5
0
0
FFFF
Table 23-11. Trimming Effect
Figure 23-8. Reserved 06
Figure 23-9. VREGHTTR
HT
twice of HTTR[2]
Table 23-11
0
0
0
0
4
4
Trimming Effect
Description
for trimming effects.
HTTR3
131072 * bus clock period
0
0
0
3
3
1
Selected Period
Chapter 23 Voltage Regulator (S12VREGL3V3V1)
HTTR2
0
2
0
0
2
1
HTTR1
0
0
0
1
1
1
HTTR0
0
0
0
0
0
1
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