參數(shù)資料
型號: 9S12DT128BDGV1
英文描述: 9S12DT128B Device Guide
中文描述: 9S12DT128B設(shè)備指南
文件頁數(shù): 16/126頁
文件大?。?/td> 1809K
代理商: 9S12DT128BDGV1
MC9S12DJ64 Device User Guide — V01.17
16
The CAN0 pin functionality (TXCAN0, RXCAN0) is not available on port PJ7, PJ6, PM5,
PM4, PM3, PM2, PM1 and PM0, if using a derivative without CAN0 (see
Table 0-1
).
The BDLC pin functionality (TXB, RXB) is not available on port PM1 and PM0, if using a
derivative without BDLC (see
Table 0-1
).
Do not write MODRR1 and MODRR0 Bit of Module Routing Register (PIM_9DJ64 Block
User Guide), if using a derivative without CAN0 (see
Table 0-1
).
Pins not available in 80 pin QFP package
Port H
In order to avoid floating nodes the ports should be either configured as outputs by setting the
data direction register (DDRH at Base+$0262) to $FF, or enabling the pull resistors by writing
a $FF to the pull enable register (PERH at Base+$0264).
Port J[1:0]
PortJpull-upresistorsareenabledoutofresetonallfourpins(7:6and1:0).Thereforecaremust
be taken not to disable the pull enables on PJ[1:0] by clearing the bits PERJ1 and PERJ0 at
Base+$026C.
Port K
Port K pull-up resistors are enabled out of reset, i.e. Bit 7 = PUKE = 1 in the register PUCR at
Base+$000C. Therefor care must be taken not to clear this bit.
Port M[7:6]
PM7:6 must be configured as outputs or their pull resistors must be enabled to avoid floating
inputs.
Port P6
PP6 must be configured as output or its pull resistor must be enabled to avoid a floating input.
Port S[7:4]
PS7:4 must be configured as outputs or their pull resistors must be enabled to avoid floating
inputs.
PAD[15:8] (ATD1 channels)
OutofresettheATD1isdisabledpreventingcurrentflowsinthepins.DonotmodifytheATD1
registers!
Document References
The Device User Guide provides information about the MC9S12DJ64 device made up of standard HCS12
blocks and the HCS12 processor core.
This document is part of the customer documentation. A complete set of device manuals also includes all
the individual Block Guides of the implemented modules. In a effort to reduce redundancy all module
specific information is located only in the respective Block Guide. If applicable, special implementation
details of the module are given in the block description sections of this document.
See
Table 0-2
for names and versions of the referenced documents throughout the Device User Guide.
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