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参数资料
型号： MC68CK338CPV14B1
厂商： FREESCALE SEMICONDUCTOR INC
元件分类： 微控制器/微处理器
英文描述： 32-BIT, 14.4 MHz, MICROCONTROLLER, PQFP144
封装： PLASTIC, TQFP-144
文件页数： 13/133页
文件大小： 944K
代理商： MC68CK338CPV14B1
MC68CK338
MOTOROLA
MC68CK338TS/D
11
Data Strobe
DS
Indicates that an external device should place valid data on the data bus
during a read cycle and that valid data has been placed on the bus by
the CPU during a write cycle
Data and Size
Acknowledge
DSACK[1:0]
Acknowledges to the SIML that data has been received for a write cycle,
or that data is valid on the data bus for a read cycle
Development Serial
In, Out, Clock
DSI, DSO,
DSCLK
Serial I/O and clock for background debugging mode
Function Codes
FC[2:0]
Identify processor state and current address space
Freeze
FREEZE
Indicates that the CPU has entered background mode
Halt
HALT
Suspend external bus activity
Instruction Pipeline
IFETCH, IPIPE
Indicate instruction pipeline activity
Interrupt Request
Level
IRQ[7:1]
Request interrupt service from the CPU
Master In Slave Out
MISO
Serial input to QSPI in master mode;
serial output from QSPI in slave mode
Clock Mode Select
MODCLK
Selects system clock source
Master Out Slave In
MOSI
Serial output from QSPI in master mode;
serial input to QSPI in slave mode
Port C
PC[6:0]
SIML digital output signals
Peripheral Chip
Select
PCS[3:0]
QSPI peripheral chip selects
Port E
PE[7:0]
SIML digital input or output port signals
Port F
PF[7:0]
SIML digital input or output port signals
Port QS
PQS[7:0]
QSM digital I/O port signals
Quotient Out
QUOT
Provides the quotient bit of the polynomial divider
Reset
RESET
System reset
Read-Modify-Write
Cycle
RMC
Indicates an indivisible read-modify-write instruction
Read/Write
R/W
Indicates the direction of data transfer on the bus
SCI Receive Data
RXD
Serial input to the SCI
QSPI Serial Clock
SCK
Clock output from QSPI in master mode;
clock input to QSPI in slave mode
Size
SIZ[1:0]
Indicates the number of bytes to be transferred during a bus cycle
Slave Select
SS
Causes serial transmission when QSPI is in slave mode.
Causes mode fault in master mode
Three-State Control
TSC
Places all output drivers in a high-impedance state
SCI Transmit Data
TXD
Serial output from the SCI
External Filter
Capacitor
XFC
Connection for external phase-locked loop filter capacitor
Table 6 MCU Signal Function (Continued)
Signal Name
Mnemonic
Function
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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