MC68360ZP25L Freescale Semiconductor, MC68360ZP25L Datasheet - Page 604
![IC MPU QUICC 25MHZ 357-PBGA](/photos/6/76/67680/mfg_mpc860_series_sml.jpg)
MC68360ZP25L
Manufacturer Part Number
MC68360ZP25L
Description
IC MPU QUICC 25MHZ 357-PBGA
Manufacturer
Freescale Semiconductor
Datasheets
1.MC68EN360VR25L.pdf
(14 pages)
2.MC68EN360VR25L.pdf
(2 pages)
3.MC68360AI25L.pdf
(962 pages)
Specifications of MC68360ZP25L
Processor Type
M683xx 32-Bit
Speed
25MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
357-PBGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Features
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Serial Management Controllers (SMCs)
written to the break count register before this command is given to the SMC UART control-
ler.
RESTART TRANSMIT Command . The RESTART TRANSMIT command enables the
transmission of characters on the transmit channel. This command is expected by the SMC
UART controller after disabling the channel in its SMC mode register and after the STOP
TRANSMIT command. The SMC UART controller will resume transmission from the current
TBPTR in the channel’s Tx BD table.
INIT TX PARAMETERS Command. This command initializes all the transmit parameters in
this serial channel’s parameter RAM to their reset state. This command should only be
issued when the transmitter is disabled. Note that the INIT TX AND RX PARAMETERS com-
mand may also be used to reset both transmit and receive parameters.
7.11.7.7.2 Receive Commands. The following paragraphs describe the UART receive
commands.
ENTER HUNT MODE Command . This command should not be used for an SMC UART
channel. The CLOSE RX BD command may be used instead.
CLOSE RX BD Command . The CLOSE RX BD command is used to force the SMC to close
the current receive BD if it is currently being used, and to use the next BD in the list for any
subsequent data that is received. If the SMC is not in the process of receiving data, no action
is taken by this command.
iNIT RX PARAMETERS Command. This command Initializes all the receive parameters in
this serial channel’s parameter RAM to their reset state. This command should only be
issued when the receiver is disabled. Note that the INIT TX AND RX PARAMETERS com-
mand may also be used to reset both receive and transmit parameters.
7.11.7.8 SEND BREAK (TRANSMITTER). A break is an all-zeros character without stop
bits. A break is sent by issuing the STOP TRANSMIT command. The SMC UART completes
transmission of any outstanding data and then sends a character with consecutive zeros
(the number of zero bits in this character is the sum of the character length, plus the number
of start, parity, and stop bits). The SMC UART transmits a programmable number of break
characters according to the break count register and then reverts to idle or sends data if the
RESTART TRANSMIT command was given before completion. At the completion of the
break, the transmitter sends at least one character of idle before transmitting any data to
guarantee recognition of a valid start bit.
7.11.7.9 SENDING A PREAMBLE (TRANSMITTER). A preamble sequence gives the pro-
grammer a convenient way of ensuring that the line goes idle before starting a new mes-
sage. The preamble sequence length is constructed of consecutive ones of one character
length. If the preamble bit in a BD is set, the SMC will send a preamble sequence before
transmitting that data buffer. Example: for 8 data bits, no parity, 1 stop bit, and 1 start bit, a
preamble of 10 ones would be sent before the first character in the buffer.
If no preamble sequence is sent, data from two ready transmit buffers may be transmitted
without any delay occurring on the transmit pin between the two transmit buffers.
7-280
MC68360 USER’S MANUAL
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