MC9S12XDP512MAG Freescale, MC9S12XDP512MAG Datasheet - Page 228
MC9S12XDP512MAG
Manufacturer Part Number
MC9S12XDP512MAG
Description
Manufacturer
Freescale
Datasheet
1.MC9S12XDP512MAG.pdf
(1348 pages)
Specifications of MC9S12XDP512MAG
Cpu Family
HCS12
Device Core Size
16b
Frequency (max)
40MHz
Interface Type
CAN/I2C/SCI/SPI
Total Internal Ram Size
32KB
# I/os (max)
119
Number Of Timers - General Purpose
12
Operating Supply Voltage (typ)
2.5/5V
Operating Supply Voltage (max)
2.75/5.5V
Operating Supply Voltage (min)
2.35/3.15V
On-chip Adc
2(24-chx10-bit)
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
144
Package Type
LQFP
Program Memory Type
Flash
Program Memory Size
512KB
Lead Free Status / RoHS Status
Compliant
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BFFO
Chapter 6 XGATE (S12XGATEV2)
Operation
FirstOne (RS)
Searches the first “1” in register RS (from MSB to LSB) and writes the bit position into the destination
register RD. The upper bits of RD are cleared. In case the content of RS is equal to $0000, RD will be
cleared and the carry flag will be set. This is used to distinguish a “1” in position 0 versus no “1” in the
whole RS register at all.
CCR Effects
1
Code and CPU Cycles
228
N:
Z:
V:
C:
BFFO RD, RS
0
N
Before executing the instruction
0; cleared.
Set if the result is $0000; cleared otherwise.
0; cleared.
Set if RS = $0000
Z
0
V
Source Form
C
RD;
1
; cleared otherwise.
Address
MC9S12XDP512 Data Sheet, Rev. 2.21
Mode
DYA
Bit Field Find First One
0
0
0
0
1
Machine Code
RD
RS
1
0
Freescale Semiconductor
BFFO
0
0
0
Cycles
P
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