
Appendix A Electrical Characteristics
MC9S12XF - Family Reference Manual, Rev.1.19
1192
Freescale Semiconductor
Table A-10. Run and Wait Current Characteristics
Table A-9. Module Congurations for Maximum Run Supply(VDDR+VDDA) Current
VDD35=5.5V
Peripheral
Conguration
S12XCPU
420 cycle loop: 384 DBNE cycles plus subroutine entry to stimulate stacking (RAM access)
XGATE
XGATE fetches code from RAM, XGATE runs in an innite loop, reading the Status and Flag
registers of CAN’s, SPI’s, SCI’s in sequence and doing some bit manipulation on the data
MSCAN
Congured to loop-back mode using a bit rate of 1Mbit/s
SPI
Congured to master mode, continuously transmit data (0x55 or 0xAA) at 4Mbit/s
SCI
Congured into loop mode, continuously transmit data (0x55) at speed of 57600 baud
PMF
Congured to toggle its pins at the rate of 24MHz
ECT
The peripheral shall be congured in output compare mode. Pulse accumulator and modulus
counter enabled.
ATD
The peripheral is congured to operate at its maximum specied
frequency and to continuously convert voltages on all input channels in sequence.
RTI
Enabled with RTI Control Register (RTICTL) set to $FF
API
The module is congured to run from the RC oscillator clock source.
EPIT
PIT is enabled, Micro-timer register 0 and 1 loaded with $0F and timer registers 0 to 3 are loaded
with $03/07/0F/1F.
FLEXRAY
Congure FlexRay and perform Startup procedure.
Overhead
VREG supplying 1.8V from a 5V input voltage, PLL on
Conditions are shown in
Table A-4 unless otherwise noted
Num
C
Rating
Symbol
Min
Typ
Max
Unit
Run supply current (Peripheral Conguration see Table A-9.) 1
P
Peripheral Set(1)
fosc=4MHz, fbus=50MHz
1. The following peripherals are on: ATD/ECT/PMF/SPI0-SPI1/SCI0-SCI1/CAN/XGATE/FLEXRAY
IDD35
—
110
mA
Wait supply current
2
P
Peripheral Set1 ,PLL on
XGATE executing code from RAM
IDDW
—
95
mA
3
P
All modules disabled, RTI enabled, PLL off
—
10