MC9S12XEQ512CAL Freescale Semiconductor, MC9S12XEQ512CAL Datasheet - Page 403

• Manufacturer Part Number: MC9S12XEQ512CAL
• Description: MCU 16BIT 512K FLASH 112-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12XEQ512CAL

• Core Processor: HCS12X
• Core Size: 16-Bit
• Speed: 50MHz
• Connectivity: CAN, EBI/EMI, I²C, IrDA, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 91
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.72 V ~ 5.5 V
• Data Converters: A/D 16x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 112-LQFP
• No. Of I/o's: 91
• Eeprom Memory Size: 4KB
• Ram Memory Size: 32KB
• Cpu Speed: 50MHz
• No. Of Timers: 3
• No. Of Pwm Channels: 8
• Digital Ic Case Style: LQFP
• Rohs Compliant: Yes
• Processor Series: S12XE
• Core: HCS12
• Data Bus Width: 16 bit
• Data Ram Size: 32 KB
• Interface Type: CAN, SCI, SPI
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 91
• Number Of Timers: 25
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWHCS12
• Development Tools By Supplier: KIT33812ECUEVME, EVB9S12XEP100, DEMO9S12XEP100
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 16 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

BFFO
Operation
FirstOne(RS) ⇒ RD;
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. Before executing the instruction
Code and CPU Cycles
Freescale Semiconductor
N:
Z:
V:
C:
BFFO RD, RS
0
N
Because of an order from the United States International Trade Commission, BGA-packaged product lines and partnumbers
indicated here currently are not available from Freescale for import or sale in the United States prior to September 2010
0; cleared.
Set if the result is $0000; cleared otherwise.
0; cleared.
Set if RS = $0000
∆
Z
0
V
Source Form
∆
C
(1)
; cleared otherwise.
MC9S12XE-Family Reference Manual Rev. 1.23
Address
Mode
DYA
Bit Field Find First One
0
0
0
0
1
Machine Code
RD
RS
Chapter 10 XGATE (S12XGATEV3)
1
0
BFFO
0
0
0
Cycles
P
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