S912XEQ384J3MALR Freescale Semiconductor, S912XEQ384J3MALR Datasheet - Page 178

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

Chapter 2 Port Integration Module (S12XEPIMV1)
This register configures the re-routing of SCI3, IIC0, CS[3:0] on alternative ports.
2.4
2.4.1
Each pin except PE0, PE1, and BKGD can act as general purpose I/O. In addition each pin can act as an
output from the external bus interface module or a peripheral module or an input to the external bus
interface module or a peripheral module.
2.4.2
A set of configuration registers is common to all ports with exceptions in the expanded bus interface and
ATD ports
not become active.
This device does not become active while the port is used as a push-pull output.
178
Functional Description
(Table
General
Registers
2-103). All registers can be written at any time, however a specific configuration might
Module
SCI3
CS3
CS2
CS1
CS0
IIC0
MC9S12XE-Family Reference Manual Rev. 1.24
Example 2-1. Selecting a pull-up device
Table 2-102. Port F Routing Summary
5
0
1
x
x
x
x
x
x
x
x
x
x
4
x
x
0
1
x
x
x
x
x
x
x
x
PTFRR
3
x
x
x
x
0
1
x
x
x
x
x
x
2
x
x
x
x
x
x
0
1
x
x
x
x
1
0
1
x
x
x
x
x
x
x
x
x
x
0
x
x
x
x
x
x
x
x
x
x
0
1
TXD
PM7
SCL
PF7
PF5
PF3
PF2
PF1
PF0
PJ7
PJ0
PJ5
PJ2
PJ4
CS
Related Pins
RXD
PM6
SDA
PF6
PF4
PJ6
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