MC912DT128ACPV Freescale Semiconductor, MC912DT128ACPV Datasheet - Page 293

• Manufacturer Part Number: MC912DT128ACPV
• Description: IC 8MHZ 16 BIT MICROCONTROLLER
• Manufacturer: Freescale Semiconductor
• Series: HC12r

Specifications of MC912DT128ACPV

• Core Processor: CPU12
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: CAN, I²C, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 67
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 16x8/10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 112-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: KMC912DT128ACPV; Q1195202

16.5.3 SS Output
MC68HC912DT128A — Rev 4.0
MOTOROLA
SCK (CPOL=0)
SCK (CPOL=1)
SAMPLE I
(MOSI/MISO)
CHANGE O
CHANGE O
SEL SS (O)
(Master only)
SEL SS (I)
(MOSI pin)
(MISO pin)
MSB first (LSBF=0):
LSB first (LSBF=1):
Transfer
t
L
Available in master mode only, SS output is enabled with the SSOE bit
in the SP0CR1 register if the corresponding DDRS is set. The SS output
pin will be connected to the SS input pin of the external slave device. The
SS output automatically goes low for each transmission to select the
external device and it goes high during each idling state to deselect
external devices.
Figure 16-5. SPI Clock Format 1 (CPHA = 1)
MSB
LSB
Freescale Semiconductor, Inc.
For More Information On This Product,
DDRS7
Begin
Bit 6
Bit 1
0
0
1
1
Go to: www.freescale.com
Multiple Serial Interface
Bit 5
Bit 2
SSOE
Table 16-3. SS Output Selection
0
1
0
1
Bit 4
Bit 3
SS Input with MODF Feature
General-Purpose Output
Bit 3
Bit 4
Master Mode
SS Output
Reserved
Bit 2
Bit 5
Bit 1
Bit 6
End
Serial Peripheral Interface (SPI)
MSB
LSB
Multiple Serial Interface
t
T
Slave Mode
Minimum 1/2 SCK
SS Input
SS Input
SS Input
SS Input
t
HC12 SPI CLOCK FORM 1
I
for t
Technical Data
T
t
L
, t
l
, t
L
293