MC9S12NE64CPV Freescale Semiconductor, MC9S12NE64CPV Datasheet - Page 114

• Manufacturer Part Number: MC9S12NE64CPV
• Description: IC MCU 25MHZ ETHERNT/PHY 112LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12NE64CPV

• Mfg Application Notes: MC9S12NE64 Integrated Ethernet Controller Implementing an Ethernet Interface with the MC9S12NE64 Web Server Development with MC9S12NE64 and Open TCP
• Core Processor: HCS12
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, Ethernet, I²C, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.375 V ~ 3.465 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 112-LQFP
• Data Bus Width: 16 bit
• Data Ram Size: 8 KB
• Interface Type: I2C, SCI, SPI
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 70
• Number Of Timers: 16 bit
• Operating Supply Voltage: - 0.3 V to + 3 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 65 C
• On-chip Adc: 10 bit
• For Use With: EVB9S12NE64E - BOARD EVAL FOR 9S12NE64DEMO9S12NE64E - DEMO BOARD FOR 9S12NE64
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: No RoHS Version Available

Chapter 3 Port Integration Module (PIM9NE64V1)
Read:Anytime.
Write:Anytime.
This register configures each port T pin as either input or output.
The standard TIM module forces the I/O state to be an output for each port pin associated with an enabled
output compare. When the pin is configured as an output compare the corresponding data direction register
(DDRT) bits do not have any effect on the I/O direction of the pin, and will maintain their previously
latched value. The DDRT bits revert to controlling the I/O direction of a pin when the associated timer
output compare is disabled. If a pin is being used as a timer input capture, the DDRT remains in control of
the pin’s I/O direction and the timer monitors the state of the pin.
DDRT[7:4] — Data Direction Port T
3.3.2.1.4
Read:Anytime.
Write:Anytime.
This register configures the drive strength of each port T output pin as either full or reduced. If the port is
used as input this bit is ignored.
RDRT[7:4] — Reduced Drive Port T
114
Due to internal synchronization circuits, it can take up to 2 bus cycles until the correct value is read on
PTT or PTIT registers, when changing the DDRT register.
1 = Associated pin is configured as output.
0 = Associated pin is configured as input.
1 = Associated pin drives at about 1/3 of the full drive strength.
0 = Full drive strength at output.
Module Base + $3
Reset:
Read:
Write:
Reduced Drive Register (RDRT)
RDRT7
Bit 7
0
= Reserved or unimplemented
RDRT6
Figure 3-5. Port T Reduced Drive Register (RDRT)
6
0
MC9S12NE64 Data Sheet, Rev. 1.1
RDRT5
5
0
RDRT4
4
0
—
3
0
—
2
0
—
1
0
Freescale Semiconductor
Bit 0
—
0