MCF51EM256CLL Freescale Semiconductor, MCF51EM256CLL Datasheet - Page 613

• 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

26.4.1.5.20 WRITE_MEM.sz, WRITE_MEM.sz_WS
Write 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 after the read data. XCSR_SB reflects the state after
the memory write was performed.
The examples show the WRITE_MEM.B{_WS}, WRITE_MEM.W{_WS}, and WRITE_MEM.L{_WS}
commands.
Freescale Semiconductor
Write memory at the specified address with status
Write memory at the specified address
host →
host →
host →
target
target
target
0x11
0x15
0x19
host →
host →
host →
target
target
target
0x10
0x14
0x18
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 → target
host → target
host → target
data[31–24]
data[15–8]
data[7–0]
Memory
Memory
Memory
WRITE_MEM.sz_WS
host →
host →
host →
target
target
target
WRITE_MEM.sz
data[31–24]
data[15–8]
data[7–0]
Memory
Memory
Memory
host →
host →
host →
target
target
target
D
Y
L
data[23–16]
data[7–0]
Memory
Memory
host →
host →
target
target
XCSR_SB
target →
host
D
L
Y
data[23–16]
data[7–0]
Memory
Memory
host →
host →
target
target
D
Y
L
data[15–8]
Memory
host →
target
XCSR_SB
target →
host
D
L
Y
data[15–8]
Version 1 ColdFire Debug (CF1_DEBUG)
Memory
host →
target
Non-intrusive
data[7–0]
Memory
Non-intrusive
host →
target
data[7–0]
Memory
host →
target
D
L
Y
XCSR_SB
target →
host
D
Y
L
26-49