MC68332ACFC25 Freescale Semiconductor, MC68332ACFC25 Datasheet - Page 123
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MC68332ACFC25
Manufacturer Part Number
MC68332ACFC25
Description
IC MCU 32BIT 25MHZ 132-PQFP
Manufacturer
Freescale Semiconductor
Series
M683xxr
Specifications of MC68332ACFC25
Core Processor
CPU32
Core Size
32-Bit
Speed
25MHz
Connectivity
EBI/EMI, SCI, SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
15
Program Memory Type
ROMless
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
132-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68332ACFC25
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC68332ACFC25
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
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6.1 General
MC68332
USER’S MANUAL
This section is an overview of queued serial module (QSM) function. Refer to the QSM
Reference Manual (QSMRM/AD) for complete information about the QSM.
The QSM contains two serial interfaces, the queued serial peripheral interface (QSPI)
and the serial communication interface (SCI). Figure 6-1 is a block diagram of the
QSM.
The QSPI provides easy peripheral expansion or interprocessor communication
through a full-duplex, synchronous, three-line bus. Four programmable peripheral chip
selects can select up to 16 peripheral devices. A self-contained RAM queue allows up
to sixteen serial transfers of eight to sixteen bits each or transmission of a 256-bit data
stream without CPU intervention. A special wraparound mode supports continuous
sampling of a serial peripheral, with automatic QSPI RAM updating, for efficient inter-
facing to A/D converters.
The SCI provides a standard nonreturn to zero (NRZ) mark/space format. It will oper-
ate in either full- or half-duplex mode. There are separate transmitter and receiver en-
able bits and dual data buffers. A modulus-type baud rate generator provides rates
from 64 to 524 kbaud with a 16.78-MHz system clock, or 110 to 655 kbaud with a
20.97-MHz system clock. Word length of either eight or nine bits can be selected. Op-
tional parity generation and detection provide either even or odd parity check capabil-
IMB
SECTION 6 QUEUED SERIAL MODULE
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 6-1 QSM Block Diagram
INTERFACE
LOGIC
QSPI
SCI
QUEUED SERIAL MODULE
Go to: www.freescale.com
PORT QS
MISO/PQS0
MOSI/PQS1
SCK/PQS2
PCS0/SS/PQS3
PCS1/PQS4
PCS2/PQS5
PCS3/PQS6
RXD
TXD/PQS7
QSM BLOCK
6-1
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