參數(shù)資料
型號(hào)： MC68CK338CPV14
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 14.4 MHz, MICROCONTROLLER, PQFP144
封裝： PLASTIC, TQFP-144
文件頁數(shù)： 94/133頁
文件大小： 944K
代理商： MC68CK338CPV14
MC68CK338
MOTOROLA
MC68CK338TS/D
63
DDRQS determines the direction of the TXD pin only when the SCI transmitter is disabled. When the
SCI transmitter is enabled, the TXD pin is an output.
NOTES:
1. PQS2 is a digital I/O pin unless the SPI is enabled (SPE in SPCR1 set), in which case it becomes
SPI serial clock SCK.
2. PQS7 is a digital I/O pin unless the SCI transmitter is enabled (TE in SCCR1 = 1), in which case
it becomes SCI serial output TXD.
Table 38 Effect of DDRQS on QSM Pin Function
QSM Pin
Mode
DDRQS Bit
Bit State
Pin Function
MISO
Master
DDQ0
0
Serial data input to QSPI
1
Disables data input
Slave
0
Disables data output
1
Serial data output from QSPI
MOSI
Master
DDQ1
0
Disables data output
1
Serial data output from QSPI
Slave
0
Serial data input to QSPI
1
Disables data input
SCK1
Master
DDQ2
0
Disables clock output
1
Clock output from QSPI
Slave
0
Clock input to QSPI
1
Disables clock Input
PCS0/SS
Master
DDQ3
0
Assertion causes mode fault
1
Chip-select output
Slave
0
QSPI slave select input
1
Disables select input
PCS[3:1]
Master
DDQ[4:6]
0
Disables chip-select output
1
Chip-select output
Slave
0
Inactive
1
Inactive
TXD2
Transmit
DDQ7
X
Serial data output from SCI
RXD
Receive
None
NA
Serial data input to SCI
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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