MC9S12E128CPV Freescale Semiconductor, MC9S12E128CPV Datasheet - Page 142

• Manufacturer Part Number: MC9S12E128CPV
• Description: Microcontrollers (MCU) 16 Bit 16MHz
• Manufacturer: Freescale Semiconductor

Specifications of MC9S12E128CPV

• Data Bus Width: 16 bit
• Program Memory Type: Flash
• Program Memory Size: 128 KB
• Data Ram Size: 8 KB
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 92
• Number Of Timers: 16 bit
• Operating Supply Voltage: 3.135 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: LQFP-112
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• On-chip Dac: 8 bit, 2 Channel
• Lead Free Status / Rohs Status: No RoHS Version Available

Chapter 3 Port Integration Module (PIM9E128V1)
3.3.3
Port P is associated with the Pulse Width Modulator (PMF) modules. Each pin is assigned according to
the following priority: PMF > general-purpose I/O.
When a PMF channel is enabled, the corresponding pin becomes a PWM output. Refer to the PMF block
description chapter for information on enabling and disabling the PWM channels.
During reset, port P pins are configured as high-impedance inputs.
3.3.3.1
Read: Anytime. Write: Anytime.
If the associated data direction bit (DDRPx) is set to 1 (output), a read returns the value of the I/O register
bit. If the associated data direction bit (DDRPx) is set to 0 (input), a read returns the value of the pin.
The PMF function takes precedence over the general-purpose I/O function if the associated PWM channel
is enabled. The PWM channels 5-0 are outputs if the respective channels are enabled.
3.3.3.2
Read: Anytime. Write: Never, writes to this register have no effect.
This register always reads back the status of the associated pins.
142
Reset
Reset
PMF:
W
W
R
R
Port P
Port P I/O Register (PTP)
Port P Input Register (PTIP)
0
0
0
0
7
7
= Reserved or Unimplemented
= Reserved or Unimplemented
0
0
0
0
6
6
Figure 3-18. Port P Input Register (PTIP)
Figure 3-17. Port P I/O Register (PTP)
PTIP5
PTP5
PW05
MC9S12E128 Data Sheet, Rev. 1.07
0
u
5
5
PTIP4
PTP4
PW04
0
u
4
4
u = Unaffected by reset
PTIP3
PTP3
PW03
0
u
3
3
PTIP2
PTP2
PW02
0
u
2
2
Freescale Semiconductor
PTIP1
PTP1
PW01
0
u
1
1
PTIP0
PTP0
PW00
0
u
0
0