MC9S12E256VFUE Freescale Semiconductor, MC9S12E256VFUE Datasheet - Page 318

• Manufacturer Part Number: MC9S12E256VFUE
• Description: IC MCU 256K FLASH 25MHZ 80-QFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12E256VFUE

• Core Processor: HCS12
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, I²C, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 60
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.35 V ~ 2.75 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 80-QFP
• Processor Series: S12E
• Core: HCS12
• Data Bus Width: 16 bit
• Data Ram Size: 16 KB
• Interface Type: I2C, SCI, SPI
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 60
• Number Of Timers: 12
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWHCS12
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 16 Channel
• On-chip Dac: 8 bit, 2 Channel
• Package: 80PQFP
• Family Name: HCS12
• Maximum Speed: 50 MHz
• For Use With: M68EVB912E128 - BOARD EVAL FOR MC9S12E128/64
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Chapter 10 Inter-Integrated Circuit (IICV2)
318
Dummy Read
From IBDR
Switch To
Rx Mode
Y
Byte To IBDR
Transmitted
(Master Rx)
Addr Cycle
Write Next
Last Byte
RXAK=0
End Of
?
?
?
Y
N
N
TX
Stop Signal
Generate
Figure 10-12. Flow-Chart of Typical IIC Interrupt Routine
Y
N
Tx/Rx
Set TXAK =1
?
Y
Byte To Be Read
Byte To Be Read
From IBDR
MC9S12E256 Data Sheet, Rev. 1.08
Read Data
And Store
2nd Last
RX
Last
?
?
N
N
Stop Signal
Generate
Y
Y
RTI
Master
Mode
Clear
IBIF
?
Write Data
To IBDR
(Read)
Set TX
Mode
N
N
Y
Dummy Read
From IBDR
Clear IBAL
IAAS=1
Set RX
SRW=1
Mode
Y
?
?
N
Address Transfer
(Write)
Tx Next
Byte
Y
Y
Y
Dummy Read
From IBDR
Freescale Semiconductor
Arbitration
ACK From
Switch To
Receiver
IAAS=1
Rx Mode
TX/RX
Lost
?
?
?
?
N
N
N
TX
Data Transfer
From IBDR
Read Data
And Store
RX