S9S12GN32F0VLC Freescale Semiconductor, S9S12GN32F0VLC Datasheet - Page 248

• Manufacturer Part Number: S9S12GN32F0VLC
• Description: 16-bit Microcontrollers - MCU 16-bit32k Flash 2k RAM
• Manufacturer: Freescale Semiconductor

Specifications of S9S12GN32F0VLC

• Product Category: 16-bit Microcontrollers - MCU
• Rohs: yes
• Core: S12
• Processor Series: MC9S12G
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 25 MHz
• Program Memory Size: 32 KB
• Data Ram Size: 2048 B
• On-chip Adc: Yes
• Operating Supply Voltage: 3.13 V to 5.5 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: TSSOP-20
• Mounting Style: SMD/SMT

Port Integration Module (S12GPIMV1)
2.5.2.3
This register defines whether the pin is used as an general-purpose input or an output.
If a peripheral module controls the pin the contents of the data direction register is ignored
Independent of the pin usage with a peripheral module this register determines the source of data when
reading the associated data register address (2.5.2.1/2-249).
2.5.2.4
This register turns on a pullup or pulldown device on the related pins determined by the associated polarity
select register (2.5.2.5/2-250).
The pull device becomes active only if the pin is used as an input or as a wired-or output. Some peripheral
module only allow certain configurations of pull devices to become active. Refer to
Routing - Functional
2.5.2.5
This register selects either a pullup or pulldown device if enabled.
It becomes only active if the pin is used as an input. A pullup device can be activated if the pin is used as
a wired-or output.
250
Data Direction Register (DDRx)
Pull Device Enable Register (PERx)
Pin Polarity Select Register (PPSx)
Due to internal synchronization circuits, it can take up to 2 bus clock cycles
until the correct value is read on port data or port input registers, when
changing the data direction register.
description”.
Module
Figure 2-64. Illustration of I/O pin functionality
DDR
PTI
PT
MC9S12G Family Reference Manual,
data out
output enable
module enable
0
1
1
1
NOTE
0
0
Rev.1.23
PIN
Section 2.3, “PIM
Freescale Semiconductor
(Figure
2-64).