Programmable Logic Equations
"RstConf_B
PIN
istype 'com'; Hard Reset master select.
Rst0
Rst1
HardReset_B
SoftReset_B
Abr0
Abr1
PIN 33 ; " connected to N.C. of Reset P.B.
PIN 31 ; " connected to N.O. of Reset P.B.
PIN 18istype 'com' ; " Actual hard reset output (O.D.)
PIN 17istype 'com' ; " Actual soft reset output (O.D.)
PIN 30 ; " connected to N.C. of Abort P.B.
PIN 29 ; " connected to N.O. of Abort P.B.
NMIEn
NMI_B
NODE istype 'com' ; " enables T.S. NMI pin
PIN 20istype 'com' ; " Actual NMI pin (O,O.D.)
"******************************************************************************
"* Data Buffers Enables and Reset configuration support
"******************************************************************************
TEA_B PIN 102 ; " Transfer Error Acknowledge.
DataBufEn_B PIN 85istype 'com,invert' ; " data buffer enable
ToolCs1_B
ToolCs2_B
ToolDataBufEn_B
PIN 27 ; " comm tool cs line 1.
PIN 21 ; " comm tool cs line 2.
PIN 91istype 'com,invert' ; " tool data buffer enable
"******************************************************************************
"* Hard Reset Configuration Logic
"******************************************************************************
boot_device_B PIN 118 ; " selects EEPROM/FLASH_B as boot device
bcsrConfEn PIN 93 ; " selects Hard Reset Configuration Source
“ BCSR or EEPROM/FLASH.
"******************************************************************************
"* Auxiliary Pins.
"******************************************************************************
"* System Hard Reset Configuration.
"******************************************************************************
DataOeNODE istype 'com' ; " data bus output enable on read.
DataPCIOeNODE istype 'com' ; " data bus output enable on PCI read.
"******************************************************************************
"* Control Register Enable Protection.
"******************************************************************************
"******************************************************************************
"* Reset & Interrupt Logic Pins.
"******************************************************************************
RstDeb1NODE istype 'keep,com' ; " reset push button debouncer
AbrDeb1NODE istype 'keep,com' ; " abort push button debouncer
HardResetEnNODE istype 'com' ; " enables T.S. hard reset pin
SoftResetEnNODE istype 'com' ; " enables T.S. soft reset pin
"******************************************************************************
"* data buffers enable.
"******************************************************************************
SyncHardReset_B NODE istype 'reg,buffer' ; " synchronized hard reset
DSyncHardReset_B NODE istype 'reg,buffer' ; " double synchronized hard reset
HoldOffCnt2,
MPC8272ADS User Guide
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