S912XEQ384J3MALR Freescale Semiconductor, S912XEQ384J3MALR Datasheet - Page 179

• Manufacturer Part Number: S912XEQ384J3MALR
• Description: S912XEQ Series 16 Bit 50 Mhz 384 KB Flash 24 KB Ram Microcontroller - LQFP-112
• Manufacturer: Freescale Semiconductor

1. Each cell represents one register with individual configuration bits
2.4.2.1
This register holds the value driven out to the pin if the pin is used as a general purpose I/O.
Writing to this register has only an effect on the pin if the pin is used as general purpose output. When
reading this address, the buffered state of the pin is returned if the associated data direction register bit is
set to “0”.
If the data direction register bits are set to logic level “1”, the contents of the data register is returned. This
is independent of any other configuration
2.4.2.2
This is a read-only register and always returns the buffered state of the pin
2.4.2.3
This register defines whether the pin is used as an input or an output.
If a peripheral module controls the pin the contents of the data direction register is ignored
Freescale Semiconductor
Port
AD0
AD1
C
D
M
H
R
A
B
E
K
T
S
P
F
J
L
Data
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
Data register (PORTx, PTx)
Input register (PTIx)
Data direction register (DDRx)
Input
yes
yes
yes
yes
yes
yes
yes
yes
yes
-
-
-
-
-
-
-
-
Direction
Data
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
Table 2-103. Register availability per port
MC9S12XE-Family Reference Manual Rev. 1.24
Reduced
Drive
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
(Figure
Enable
Pull
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
2-107).
Polarity
Select
yes
yes
yes
yes
yes
yes
yes
yes
yes
-
-
-
-
-
-
-
-
Chapter 2 Port Integration Module (S12XEPIMV1)
Or Mode
Wired-
yes
yes
yes
-
-
-
-
-
-
-
-
-
-
-
-
-
-
(1)
(Figure
Interrupt
Enable
yes
yes
yes
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2-107).
Interrupt
Flag
yes
yes
yes
(Figure
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Routing
2-107).
yes
yes
yes
yes
-
-
-
-
-
-
-
-
-
-
-
-
-
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