Z8523L08VEG Datasheet, PDF (43/118 Pages) Zilog, Inc. – Enhanced Serial Communications Controller

Z80230/Z85230/L
Product Specification
38
Table 9. Write Register 1
Bit
7
6
5
4
3
2
1
0
R/W
W
Reset
0
0
X
0
0
X
0
0
R = Read W = Write X = Indeterminate
Bit
Position
R/W
Value Description
7
WAIT/DMA Request Enable
0 Disabled
1 Enabled
6
WAIT/DMA Request Function
0 Wait
1 Request
5
WAIT/DMA Request on Receive/Transmit
0 Transmit
1 Receive
4, 3
00 Receive Interrupt Disable
01 Rec Int on First Character or Special Condition
10 Int on all Rx Characters or Special Condition
11 Rx Int on Special Condition Only
2
Parity is Special condition
1
Tx Int Enable
0
Ext Int Enable
PS005308-0609
Programming