參數(shù)資料
型號: UPD72042A
廠商: NEC Corp.
英文描述: LSI DEVICES FOR Inter Equipment BusTM (IEBusTM) PROTOCOL CONTROL
中文描述: LSI器件間設(shè)備BusTM(IEBusTM)協(xié)議控制
文件頁數(shù): 41/92頁
文件大?。?/td> 541K
代理商: UPD72042A
μ
PD72042A, 72042B
41
DATA SHEET S13990EJ2V0DS00
STR
Address
Read/write
When reset : 0101
××××
B
: 0000B (0H)
: Read
Status register
STR is a one-byte read register used to indicate the states of TBF and RBF.
b7
TFL
b6
TEP
b5
RFL
b4
b3
b0
STR
b2
b1
REP
[TFL]
1 : TBF is full.
0 : TBF is not full. The microcomputer can load data into TBF.
[TEP]
1 : TBF is empty. The microcomputer can load initial data into TBF.
0 : TBF is not empty.
[RFL]
1 : RBF is full.
0 : RBF is not full.
[REP]
1 : RBF is empty.
0 : RBF is not empty. The microcomputer can read data from RBF.
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