Zilog Z16C35 - Manual (Page 48)

ISCC
User Manual
UM011002-0808
42
Figure 3–13. Async Transmission, 16x Clock Mode Using External Crystal
Figure 3–14. Async Transmission, 1x Clock Rate, NRZ Data Encoding
SCC
B
R
G
16x
Output TxC
RxC
/TRxC Pin
/RTxC Pin
/SYNC Pin
External
Crystal
0 1 0 1 1 0
/TRxC Out = BRG Output
1 1
D7 D6 D5 D4 D3 D2 D1 D0
/TRxC Pin = Output Pin
Tx Clock = BRG Output
Rx Clock = BRG Output
Using External Crystal
0
BRG Clock Source = /RTxC or
XTAL Oscillator
D1
WR11
WR14
SCC
NRZ Data
RxD Pin SYNC
Modem
/RTxC Pin
RxC
TxC
1x
Page 42 of 316