參數(shù)資料
型號： MC9S12DG128
廠商： Motorola, Inc.
英文描述： MC9S12DT128 Device User Guide V02.09
中文描述： MC9S12DT128設備的用戶手冊V02.09
文件頁數(shù)： 59/124頁
文件大?。?/td> 2125K
代理商： MC9S12DG128
59
2.3.17 PE3 / LSTRB / TAGLO — Port E I/O Pin 3
PE3 is a general purpose input or output pin. In MCU expanded modes of operation, LSTRB can be used
for the low-byte strobe function to indicate the type of bus access and when instruction tagging is on,
TAGLO is used to tag the low half of the instruction word being read into the instruction queue.
2.3.18 PE2 / R/W—Port E I/O Pin 2
PE2 is a general purpose input or output pin. In MCU expanded modes of operations, this pin drives the
read/write output signal for the external bus. It indicates the direction of data on the external bus.
2.3.19 PE1 / IRQ — Port E Input Pin 1
PE1 is a general purpose input pin and the maskable interrupt request input that provides a means of
applying asynchronous interrupt requests. This will wake up the MCU from STOP or WAIT mode.
2.3.20 PE0 / XIRQ — Port E Input Pin 0
PE0 is a general purpose input pin and the non-maskable interrupt request input that provides a means of
applying asynchronous interrupt requests. This will wake up the MCU from STOP or WAIT mode.
2.3.21 PH7 / KWH7 / SS2 — Port H I/O Pin 7
PH7isageneralpurposeinputoroutputpin.ItcanbeconfiguredtogenerateaninterruptcausingtheMCU
to exit STOP or WAIT mode. It can be configured as slave select pin SS of the Serial Peripheral Interface
2 (SPI2).
2.3.22 PH6 / KWH6 / SCK2 — Port H I/O Pin 6
PH6isageneralpurposeinputoroutputpin.ItcanbeconfiguredtogenerateaninterruptcausingtheMCU
toexitSTOPorWAITmode.ItcanbeconfiguredasserialclockpinSCKoftheSerialPeripheralInterface
2 (SPI2).
2.3.23 PH5 / KWH5 / MOSI2 — Port H I/O Pin 5
PH5isageneralpurposeinputoroutputpin.ItcanbeconfiguredtogenerateaninterruptcausingtheMCU
to exit STOP or WAIT mode. It can be configured as master output (during master mode) or slave input
pin (during slave mode) MOSI of the Serial Peripheral Interface 2 (SPI2).
2.3.24 PH4 / KWH4 / MISO2 — Port H I/O Pin 2
PH4isageneralpurposeinputoroutputpin.ItcanbeconfiguredtogenerateaninterruptcausingtheMCU
to exit STOP or WAIT mode. It can be configured as master input (during master mode) or slave output
(during slave mode) pin MISO of the Serial Peripheral Interface 2 (SPI2).
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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MC9S12DG128CFU 制造商:FREESCALE-SEMI 功能描述:
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