MC9S12DT256MPVE Freescale Semiconductor, MC9S12DT256MPVE Datasheet - Page 997

• Manufacturer Part Number: MC9S12DT256MPVE
• Description: IC MCU 256K FLASH 25MHZ 112-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12DT256MPVE

• Core Processor: HCS12
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: CAN, I²C, SCI, SPI
• Peripherals: PWM, WDT
• Number Of I /o: 91
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 2.35 V ~ 5.25 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 112-LQFP
• Processor Series: S12D
• Core: HCS12
• Data Bus Width: 16 bit
• Data Ram Size: 12 KB
• Interface Type: CAN/I2C/SCI/SPI
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 91
• Number Of Timers: 1
• Operating Supply Voltage: 5 V to 2.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWHCS12
• Development Tools By Supplier: M68KIT912DP256
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 2 (8-ch x 10-bit)
• No. Of I/o's: 91
• Eeprom Memory Size: 4KB
• Ram Memory Size: 12KB
• Cpu Speed: 25MHz
• No. Of Timers: 1
• No. Of Pwm Channels: 8
• Digital Ic Case Style: LQFP
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

IRQEN
Reset
Reset
IRQE
24.0.5.10 IRQ Control Register (IRQCR)
Read: See individual bit descriptions below.
Write: See individual bit descriptions below.
Field
24.0.5.11 Port K Data Register (PORTK)
Read: Anytime.
Write: Anytime.
7
6
W
W
R
R
IRQE
IRQ Select Edge Sensitive Only
Special modes: Read or write anytime.
Normal and emulation modes: Read anytime, write once.
0 IRQ configured for low level recognition.
1 IRQ configured to respond only to falling edges. Falling edges on the IRQ pin will be detected anytime
External IRQ Enable
Read or write anytime.
0 External IRQ pin is disconnected from interrupt logic.
1 External IRQ pin is connected to interrupt logic.
PK7
7
0
7
0
IRQE = 1 and will be cleared only upon a reset or the servicing of the IRQ interrupt.
= Unimplemented or Reserved
IRQEN
1
0
0
6
6
EDIV[1:0]
Table 24-13. Free-Running ECLK Clock Rate
Figure 24-13. Port K Data Register (PORTK)
Figure 24-12. IRQ Control Register (IRQCR)
00
01
10
11
Table 24-14. IRQCR Field Descriptions
PK5
5
0
0
5
0
ECLK = Bus clock rate
ECLK = Bus clock rate divided by 2
ECLK = Bus clock rate divided by 3
ECLK = Bus clock rate divided by 4
Rate of Free-Running ECLK
PK4
0
0
0
4
4
Description
PK3
3
0
0
3
0
PK2
0
0
0
2
2
PK1
1
0
0
1
0
PK0
0
0
0
0
0