Z8523016VEG Datasheet, PDF (62/118 Pages) Zilog, Inc. – Enhanced Serial Communications Controller

Z80230/Z85230/L
Product Specification
57
Table 28. Read Register 3
Bit
7
6
5
4
3
2
1
0
R/W
R
Reset
X
X
X
X
X
X
X
X
R = Read W = Write X = Indeterminate
Bit
Position
R/W
Value Description
7
0
6
0
5
Channel A Rx IP
4
Channel A Tx IP
3
Channel A Ext/Status IP
2
Channel B Rx IP
1
Channel B Tx IP
0
Channel B Ext/Status IP
Bits 5, 4, 3, 2, 1 and 0 are always 0 when read from Channel B.
PS005308-0609
Programming