參數(shù)資料
型號： MC68HC58DW
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 1 CHANNEL(S), LOCAL AREA NETWORK CONTROLLER, PDSO28
封裝： SOIC-28
文件頁數(shù)： 62/102頁
文件大?。?/td> 700K
代理商： MC68HC58DW
MOTOROLA
DATA LINK CONTROLLER OPERATION
MC68HC58
4-18
TECHNICAL DATA
Figure 4-11 Host/DLC Serial Mode Receive Routine (Part 1 of 2)
START RX DATA ROUTINE
LOAD DUMMY DATA BYTE INTO
IS SPI TRANSFER COMPLETE?
NO
RETRIEVE THE STATUS BYTE RECEIVED
FROM THE DLC FROM SPI DATA REGISTER
YES
A
DLC HOST REC FLOW 1
A
RETRIEVE THE DATA BYTE
ASSERT DLC CS
YES
NO
IS COMPLETION CODE AT
LOAD “FLUSH BYTE” COMMAND BYTE
IS SPI TRANSFER COMPLETE?
NO
YES
SPI DATA REGISTER, INITIATING
SPI TRANSFER
C
HEAD OF RX FIFO?
BIT COMBINATION INTO SPI DATA
DATA REGISTER, INITIATING SPI TRANSFER
NEGATE DLC CS
RECEIVED FROM THE DLC FROM
SPI DATA REGISTER AND STORE
IN RX MESSAGE RAM BUFFER
MINIMUM 2.5
S DELAY BETWEEN
NEGATION AND ASSERTION OF CS
B
DOES MESSAGE PASS SOFTWARE
NO
YES
MESSAGE FILTER?
D
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