MC9S12XA256CAL Freescale Semiconductor, MC9S12XA256CAL Datasheet - Page 1154

• Manufacturer Part Number: MC9S12XA256CAL
• Description: IC MCU 256K FLASH 112-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12XA256CAL

• Core Processor: HCS12X
• Core Size: 16-Bit
• Speed: 80MHz
• Connectivity: EBI/EMI, I²C, IrDA, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 91
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.35 V ~ 5.5 V
• Data Converters: A/D 16x10b
• 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: 16KB
• Cpu Speed: 80MHz
• No. Of Timers: 1
• No. Of Pwm Channels: 8
• Digital Ic Case Style: LQFP
• Rohs Compliant: Yes
• Processor Series: S12XA
• Core: HCS12
• Data Bus Width: 16 bit
• Data Ram Size: 16 KB
• Interface Type: CAN, I2C, SCI, SPI
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 91
• Number Of Timers: 12
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWHCS12
• Development Tools By Supplier: EVB9S12XDP512E
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 2 (10 bit, 16 Channel)
• Package: 112LQFP
• Family Name: HCS12
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 2.5|5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Chapter 28 256 Kbyte Flash Module (S12XFTX256K2V1)
MRDS bits are readable and writable while all remaining bits read 0 and are not writable in normal mode.
The WRALL bit is writable only in special mode to simplify mass erase and erase verify operations. When
writing to the FTSTMOD register in special mode, all unimplemented/reserved bits must be written to 0.
28.3.2.4
The FCNFG register enables the Flash interrupts and gates the security backdoor writes.
1156
MRDS[1:0]
WRALL
Reset
Reset
Field
6:5
4
W
W
R
R
Margin Read Setting — The MRDS[1:0] bits are used to set the sense-amp margin level for reads of the Flash
array as shown in
Write to all Register Banks — If the WRALL bit is set, all banked FDATA registers sharing the same register
address will be written simultaneously during a register write.
0 Write only to the FDATA register bank selected using BKSEL.
1 Write to all FDATA register banks.
Flash Configuration Register (FCNFG)
0
0
0
0
7
7
Figure 28-7. Flash Test Mode Register (FTSTMOD — Special Mode)
Figure 28-6. Flash Test Mode Register (FTSTMOD —Normal Mode)
= Unimplemented or Reserved
= Unimplemented or Reserved
0
0
6
6
1 Flash array reads will be sensitive to program margin.
2 Flash array reads will be sensitive to erase margin.
Table
MRDS
MRDS
MRDS[1:0]
Table 28-7. FTSTMOD Margin Read Settings
Table 28-6. FTSTMOD Field Descriptions
28-7.
00
01
10
11
MC9S12XDP512 Data Sheet, Rev. 2.21
0
0
5
5
WRALL
0
0
0
4
4
Margin Read Setting
Description
Program Margin
Erase Margin
Normal
Normal
0
0
0
0
3
3
2
1
0
0
0
0
2
2
Freescale Semiconductor
0
0
0
0
1
1
0
0
0
0
0
0