Z80181 Zilog., Z80181 Datasheet - Page 23

• Manufacturer Part Number: Z80181
• Description: SMART ACCESS CONTROLLER (SAC)
• Manufacturer: Zilog.

Zilog
TIMER REGISTERS
Timer Data Registers
Timer Reload Registers
DS971800500
Figure 23. Timer 0 Reload Register L
Figure 19. Timer 0 Data Register L
Figure 20. Timer 1 Data Register L
TMDR0L
Read/Write
RLDR0L
Read/Write
7
TMDR1L
Read/Write
7
7
6
6
6
5
5
5
4
4
4
3
3
3
2
Figure 18. CSI/O Transmit/Receive Data Register
2
Addr 0Ch
2
Addr 0Eh
Addr 14h
TRDR
Read/Write
1
1
7
1
0
0
6
0
5
4
3
2
Addr 0Bh
1
0
Figure 24. Timer 1 Reload Register L
Read - Received Data
Write - Transmit Data
Figure 21. Timer 0 Data Register H
Figure 22. Timer 1 Data Register H
RLDR1L
Read/Write
TMDR0H
Read/Write
When Read, read Data Register L
before reading Data Register H.
15 14 13 12 11 10 9
7
TMDR1H
Read/Write
When Read, read Data Register L
before reading Data Register H.
15 14 13 12 11 10 9
6
5
4
3
S
2
MART
Addr 16h
Addr 0Dh
Addr 15h
1
A
CCESS
0
8
8
C
ONTROLLER
Z80181
2-23
SAC
™