Z8523L08VEG Datasheet, PDF (54/118 Pages) Zilog, Inc. – Enhanced Serial Communications Controller

Z80230/Z85230/L
Product Specification
49
Table 20. Write Register 11
Bit
7
6
5
4
3
2
1
0
R/W
W
Hardware
Reset
0
0
0
0
1
0
0
0
Channel Reset
X
X
X
X
X
X
X
X
R = Read W = Write X = Indeterminate
Bit
Position
R/W
Value Description
7
RTxC Xtal/No Xtal
0 No Xtal
1 RTxC Xtal
6, 5
00 Receive Clock = RTxC Pin
01 Receive Clock = TRxC Pin
10 Receive Clock = BRG Output
11 Receive Clock = DPLL Output
4, 3
00 Transmit Clock = RTxC Pin
01 Transmit Clock = TRxC Pin
10 Transmit Clock = BRG Output
11 _{Transmit Clock = DPLL Output}
2
TRxC Input/Output
0 Output
1 Input
1
00 TRxC Out = Xtal Output
01 TRxC Out = Transmit Clock
10 TRxC Out = BRG Output
11 _{TRxC Out = DPLL Output}
PS005308-0609
Programming