參數(shù)資料
型號: 9S12DT256DGV3
廠商: Motorola, Inc.
英文描述: MC9S12DT256 Device User Guide V03.03
中文描述: MC9S12DT256設(shè)備的用戶手冊V03.03
文件頁數(shù): 62/130頁
文件大?。?/td> 2077K
代理商: 9S12DT256DGV3
MC9S12DT256 Device User Guide — V03.03
60
Figure 2-6 External Clock Connections (PE7=0)
2.3.14 PE6 / MODB / IPIPE1 — Port E I/O Pin 6
PE6 is a general purpose input or output pin. It is used as a MCU operating mode select pin during reset.
The state of this pin is latched to the MODB bit at the rising edge of RESET. This pin is shared with the
instructionqueuetrackingsignalIPIPE1.Thispinisaninputwithapull-downdevicewhichisonlyactive
when RESET is low.
2.3.15 PE5 / MODA / IPIPE0 — Port E I/O Pin 5
PE5 is a general purpose input or output pin. It is used as a MCU operating mode select pin during reset.
The state of this pin is latched to the MODA bit at the rising edge of RESET. This pin is shared with the
instructionqueuetrackingsignalIPIPE0.Thispinisaninputwithapull-downdevicewhichisonlyactive
when RESET is low.
2.3.16 PE4 / ECLK — Port E I/O Pin 4
PE4 is a general purpose input or output pin. It can be configured to drive the internal bus clock ECLK.
ECLK can be used as a timing reference.
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.
MCU
EXTAL
XTAL
CMOS-COMPATIBLE
EXTERNAL OSCILLATO
R
(VDDPLL-Level)
not connected
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9S12E128DGV1 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:MC9S12E-Family Device User Guide V01.04
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