MC9S12UF32 Datasheet, PDF (51/128 Pages) Freescale Semiconductor, Inc – System on a Chip Guide V01.05

System on a Chip Guide — 9S12UF32DGV1/D V01.05
2.2 Signal Properties Summary for 100-pin Package
Table 2-3 100-pin Signal Properties
Pin Name Pin Name
Function Function
1
2
Pin Name
Function
3
Internal Pull
Pin Name
Function
4
Supply
Rail
Resistor
CTRL
Reset
State
Description
EXTAL
—
XTAL
—
—
—
-
NA
NA
Oscillator pins
—
—
-
NA
NA
TEST¹
—
—
—
NA
NA Test pin only
VREGEN
—
—
—
VDDR NA
NA Voltage Regulator Enable Input
PE7
NOACC
—
—
VDDR PUCR Up Port E I/O pin; CPU no access
PE6
IPIPE1
MODB
—
VDDR
While RESET is Port E I/O pin; pipe status; mode
low: Down selection
PE5
IPIPE0
MODA
—
VDDR
While RESET is Port E I/O pin; pipe status; mode
low: Down selection
PE4
ECLK
—
—
VDDR PUCR Up Port E I/O pin; bus clock output
PE3
LSTRB
TAGLO
—
VDDR PUCR
Up
Port E I/O pin; low strobe; tag
signal low
PE2
R/W
—
—
VDDR PUCR
Up
Port E I/O pin; R/W in expanded
modes
PE1
IRQ
—
PE0
XIRQ
—
—
VDDR
Port E input; external interrupt pin
—
VDDR
Always up
Port E input; non-maskable
interrupt pin
PA[7:0]
ADDR[15:8]
/DATA[15:8]
CFD[15:8]
ATAD[15:8]
VDDX
Port A I/O pin; multiplexed
PUCR Disabled address/data; CFHC Data;
ATA5HC Data
PB[7:0]
ADDR[7:0]/
DATA[7:0]
CFD[7:0]
ATAD[7:0]]
VDDX
Port B I/O pin; multiplexed
PUCR Disabled address/data; CFHC Data;
ATA5HC Data
RESET
—
—
—
VDDR NA
NA External reset pin
BKGD
MODC
TAGHI
—
VDDR
Always
up
Up
Background debug; mode pin; tag
signal high
RPU
—
—
—
VDDA NA
NA
USB D+ pull up resistor
termination
RREF
—
—
—
VDDA NA
NA External bias resistor
DPF
—
—
—
VDDA NA
NA USB full speed D+ data line
DPH
—
—
—
VDDA NA
NA USB high speed D+ data line
DMF
—
—
—
VDDA NA
NA USB full speed D- data line
DMH
—
—
—
VDDA NA
NA USB high speed D- data line
REF3V
—
3.3V regulator reference for driving
—
—
VDDR NA
NA external NMOS regulator, default
output 0V
5V power-off signal for turning off
PWROFF5V
—
—
—
VDDR NA
NA 5V supply by using external PMOS
switch, default output VDDR
3V power-off signal for turning off
PWROFF3V
—
—
—
VDDR NA
NA 5V supply by using external PMOS
switch, default output VDDR
Freescale Semiconductor
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