Chapter 1 Device Overview MC9S12XE-Family
MC9S12XE-Family Reference Manual , Rev. 1.19
58
Freescale Semiconductor
Table 1-10. Signal Properties Summary (Sheet 1 of 4)
Pin
Name
Function 1
Pin
Name
Function 2
Pin
Name
Function 3
Pin
Name
Function 4
Pin
Name
Function 5
Power
Supply
Internal Pull
Resistor
Description
CTRL
Reset
State
EXTAL
—
—
—
—
V
DDPLL
NA
NA
Oscillator pins
XTAL
—
—
—
—
V
DDPLL
NA
NA
RESET
—
—
—
—
V
DDX
PULLUP
External reset
TEST
—
—
—
—
N.A.
RESET pin
DOWN Test input
BKGD
MODC
—
—
—
V
DDX
Always on
Up
Background debug
PAD[31:16]
AN[31:16]
—
—
—
V
DDA
PER0AD1
PER1AD1
Disabled Port AD inputs of ATD1,
analog inputs of ATD1
PAD[15:0]
AN[15:0]
—
—
—
V
DDA
PER0AD0
PER1AD0
Disabled Port AD inputs of ATD0,
analog inputs of ATD0
PA[7:0]
ADDR[15:8]
IVD[15:8]
—
—
V
DDX
PUCR
Disabled Port A I/O, address bus,
internal visibility data
PB[7:1]
ADDR[7:1]
IVD[7:0]
—
—
V
DDX
PUCR
Disabled Port B I/O, address bus,
internal visibility data
PB0
ADDR0
UDS
V
DDX
PUCR
Disabled Port B I/O, address bus,
upper data strobe
PC[7:0]
DATA[15:8]
—
—
—
V
DDX
PUCR
Disabled Port C I/O, data bus
PD[7:0]
DATA[7:0]
—
—
—
V
DDX
PUCR
Disabled Port D I/O, data bus
PE7
ECLKX2
XCLKS
—
—
V
DDX
PUCR
Up
Port E I/O, system clock
output, clock select
PE6
TAGHI
MODB
—
—
V
DDX
While RESET
pin is low: down
Port E I/O, tag high, mode
input
PE5
RE
MODA
TAGLO
—
V
DDX
While RESET
pin is low: down
Port E I/O, read enable,
mode input, tag low input
PE4
ECLK
—
—
—
V
DDX
PUCR
Up
Port E I/O, bus clock output
PE3
LSTRB
LDS
EROMCTL
—
V
DDX
PUCR
Up
Port E I/O, low byte data
strobe, EROMON control
PE2
R/W
WE
—
—
V
DDX
PUCR
Up
Port E I/O, read/write
PE1
IRQ
—
—
—
V
DDX
PUCR
Up
Port E Input, maskable
interrupt
PE0
XIRQ
—
—
—
V
DDX
PUCR
Up
Port E input, non-maskable
interrupt
PF7
TXD3
—
—
—
V
DDX
PERF/
PPSF
Up
Port F I/O, interrupt, TXD of
SCI3
PF6
RXD3
—
—
—
V
DDX
PERF/
PPSF
Up
Port F I/O, interrupt, RXD of
SCI3
PF5
SCL0
—
—
—
V
DDX
PERF/
PPSF
Up
Port F I/O, interrupt, SCL of
IIC0
PF4
SDA0
—
—
—
V
DDX
PERF/
PPSF
Up
Port F I/O, interrupt, SDA of
IIC0
PF3
CS3
—
—
—
V
DDX
PERF/
PPSF
Up
Port F I/O, interrupt, chip
select 3
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
S12XE
products
in
208
MAPBGA
packages