Z86L78 Datasheet, PDF (33/59 Pages) Zilog, Inc. – IR/Low-Voltage Microcontroller

Zilog
T8 (8-Bit)
Transmit Mode
Z86L78
IR/Low-Voltage Microcontroller
1
Reset T8_Enable Bit
No
1
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
Start T8
T8_OUT
Toggle
No
T8_Timeout
Start T8
Single Pass
Single Pass?
Modulo-N
1
Load TC8L
Reset T8_OUT
T8_OUT Value
0
Load TC8H
Set T8_OUT
0
Load TC8H
Set T8_OUT
Start T8
No
T8_Timeout
Yes
Stop T8
Set Time-out Status Bit
(CTR0 D5) and Generate
Timeout_Int If Enabled
Figure 23. Transmit Mode Flowchart
DS97LVO0701
2-33