Z86L79 Datasheet, PDF (32/58 Pages) Zilog, Inc. – Low-Voltage Microcontroller

Z86L79/80
Low-Voltage Microcontroller
T8 (8-Bit)
Transmit Mode
Zilog
Reset T8_Enable Bit
No
0
T8_Enable Bit Set
CTR0, D7
Yes
CTR1, D1
Value
Load TC8L
Reset T8_OUT
Set Time-out Status Bit
(CTR0 D5) and Generate
Timeout_Int If Enabled
Enable T8
No
T8_Timeout
Single Pass
Yes
Single Pass?
Modulo-N
1
T8_OUT Value
Load TC8L
Reset T8_OUT
1
Load TC8H
Set T8_OUT
0
Load TC8H
Set T8_OUT
Enable T8
No
T8_Timeout
Yes
Disable T8
Set Time-out Status Bit
(CTR0 D5) and Generate
Timeout_Int If Enabled
3-32
Figure 23. Transmit Mode Flowchart
PRELIMINARY