MCF51EM256CLL Freescale Semiconductor, MCF51EM256CLL Datasheet - Page 609

• Manufacturer Part Number: MCF51EM256CLL
• Description: IC MCU 32BIT 256KB FLASH 100LQFP
• Manufacturer: Freescale Semiconductor
• Series: MCF51EMr

Specifications of MCF51EM256CLL

• Core Processor: Coldfire V1
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, SCI, SPI
• Peripherals: LCD, LVD, PWM, WDT
• Number Of I /o: 63
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 16x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Processor Series: MCF51EM
• Core: ColdFire V1
• Data Bus Width: 32 bit
• Data Ram Size: 16 KB
• Interface Type: RS-232, LIN
• Maximum Clock Frequency: 50 MHz
• Number Of Timers: 3
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JLINK-CF-BDM26, EWCF
• Development Tools By Supplier: DEMOEM
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

26.4.1.5.11 READ_MEM.sz, READ_MEM.sz_WS
Read data at the specified memory address. The reference address is transmitted as three 8-bit packets (msb
to lsb) immediately after the command packet. The access attributes are defined by BAAR[TT,TM]. The
hardware forces low-order address bits to zeros for word and longword accesses to ensure these accesses
are on 0-modulo-size alignments. If the with-status option is specified, the core status byte (XCSR_SB)
contained in XCSR[31–24] is returned before the read data. XCSR_SB reflects the state after the memory
read was performed.
Freescale Semiconductor
Read memory at the specified address with status
Read memory at the specified address
host →
host →
host →
target
target
target
0x31
0x35
0x39
host →
host →
host →
target
target
target
0x34
0x38
0x30
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
Address[23-0]
Address[23-0]
Address[23-0]
host →
host →
host →
target
target
target
Address[23-0]
Address[23-0]
Address[23-0]
host →
host →
host →
target
target
target
D
L
Y
D
L
Y
D
L
Y
READ_MEM.sz_WS
XCSR_SB
XCSR_SB
XCSR_SB
target →
target →
target →
READ_MEM.sz
host
host
host
D
Y
D
Y
D
Y
L
L
L
data[31-24]
data[15-8]
target →
target →
Memory
Memory
data[7-0]
target →
Memory
host
host
host
data[31-24]
data [15-8]
data[7-0]
target →
target →
Memory
Memory
Memory
target →
host
host
host
data[23-16]
data[7-0]
target →
target →
Memory
Memory
host
host
data[23-16]
data [7-0]
target →
Memory
Memory
target →
host
host
Version 1 ColdFire Debug (CF1_DEBUG)
data[15-8]
target →
Memory
host
Non-intrusive
Non-intrusive
data [15-8]
target →
Memory
host
data[7-0]
target →
Memory
host
data [7-0]
Memory
target →
host
26-45