参数资料
型号: MC9S12DG256VPV
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
封装: LQFP-112
文件页数: 90/132页
文件大小: 782K
代理商: MC9S12DG256VPV
MC9S12DT256 Device User Guide — V03.07
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
instruction queue tracking signal IPIPE1. This pin is an input with a pull-down device which is only active
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
instruction queue tracking signal IPIPE0. This pin is an input with a pull-down device which is only active
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
not connected
(VDDPLL-Level)
相关PDF资料
PDF描述
MC9S12DT256VFU 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
MC9S12DG256MPV 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
MC9S12DT256MPV 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
MC9S12DG256VFUE 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
MC9S12DJ256MFU 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
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