MPC555LFMZP40 Freescale Semiconductor, MPC555LFMZP40 Datasheet - Page 514

• Manufacturer Part Number: MPC555LFMZP40
• Description: IC MCU 32BIT 40MHZ 272-BGA
• Manufacturer: Freescale Semiconductor
• Series: MPC5xxr

Specifications of MPC555LFMZP40

• Core Processor: PowerPC
• Core Size: 32-Bit
• Speed: 40MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 101
• Program Memory Size: 448KB (448K x 8)
• Program Memory Type: FLASH
• Ram Size: 26K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 2.7 V
• Data Converters: A/D 32x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 272-PBGA
• Controller Family/series: POWER 5xx
• Ram Memory Size: 26KB
• Cpu Speed: 63MIPS
• Embedded Interface Type: QSPI, SCI, TouCAN
• Operating Temperature Range: -40°C To +125°C
• No. Of Pins: 272
• Rohs Compliant: No
• Processor Series: MPC5xx
• Core: PowerPC
• Data Bus Width: 32 bit
• Data Ram Size: 26 KB
• Interface Type: CAN, QSPI, SCI
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 101
• Operating Supply Voltage: 3.3 V to 5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: MPC555CMEE
• Minimum Operating Temperature: - 85 C
• On-chip Adc: 10 bit, 32 Channel
• Cpu Family: MPC55xx
• Device Core: PowerPC
• Device Core Size: 32b
• Frequency (max): 40MHz
• Total Internal Ram Size: 32KB
• # I/os (max): 101
• Operating Supply Voltage (typ): 5V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 272
• Package Type: BGA
• For Use With: MPC555CMEE - KIT EVAL FOR MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: No

14.8.7.4 Parity Checking
14.8.7.5 Transmitter Operation
MPC555
USER’S MANUAL
The SCI receiver operates asynchronously. An internal clock is necessary to synchro-
nize with an incoming data stream. The SCI baud rate generator produces a receive
time sampling clock with a frequency 16 times that of the SCI baud rate. The SCI de-
termines the position of bit boundaries from transitions within the received waveform,
and adjusts sampling points to the proper positions within the bit period.
Table 14-29
rate with this IMB clock speed is 1250 Kbaud.
The PT bit in SCCxR1 selects either even (PT = 0) or odd (PT = 1) parity. PT affects
received and transmitted data. The PE bit in SCCxR1 determines whether parity
checking is enabled (PE = 1) or disabled (PE = 0). When PE is set, the MSB of data
in a frame (i.e., the bit preceding the stop bit) is used for the parity function. For trans-
mitted data, a parity bit is generated. For received data, the parity bit is checked. When
parity checking is enabled, the PF bit in the SCI status register (SCxSR) is set if a par-
ity error is detected.
Enabling parity affects the number of data bits in a frame, which can in turn affect
frame size.
The transmitter consists of a serial shifter and a parallel data register (TDRx) located
in the SCI data register (SCxDR). The serial shifter cannot be directly accessed by the
CPU. The transmitter is double-buffered, which means that data can be loaded into the
TDRx while other data is shifted out. The TE bit in SCCxR1 enables (TE = 1) and dis-
ables (TE = 0) the transmitter.
The shifter output is connected to the TXD pin while the transmitter is operating (TE =
1, or TE = 0 and transmission in progress). Wired-OR operation should be specified
when more than one transmitter is used on the same SCI bus. The WOMS bit in
/
MPC556
Table 14-24
shows possible baud rates for a 40-MHz IMB clock. The maximum baud
NOTES:
1,250,000.00
Baud Rate
57,600.00
38,400.00
32,768.00
28,800.00
19,200.00
14,400.00
1. These rates are based on a 40-MHz IMB clock.
Nominal
9,600.00
4,800.00
2,400.00
1,200.00
600.00
300.00
Table 14-29 Examples of SCIx Baud Rates
Freescale Semiconductor, Inc.
QUEUED SERIAL MULTI-CHANNEL MODULE
For More Information On This Product,
shows possible data and parity formats.
1,250,000.00
Baud Rate
Go to: www.freescale.com
56,818.18
37,878.79
32,894.74
29,069.77
19,230.77
14,367.81
9,615.38
4,807.69
2,399.23
1,199.62
600.09
299.98
Actual
Rev. 15 October 2000
Percent
Error
-1.36
-1.36
-0.22
-0.03
-0.03
-0.01
0.00
0.39
0.94
0.16
0.16
0.16
0.02
Value of
SCxBR
1042
2083
4167
130
260
521
22
33
38
43
65
87
1
1
MOTOROLA
14-52