Z80181 Zilog., Z80181 Datasheet - Page 63

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

Zilog
Figure 71 shows the general timing for the on-chip SCC.
Parameters referenced in this figure appear in Table D.
DS971800500
/RTxC, /TRxC
/TRxC, /RTxC
/CTS, /DCD
/W//REQ
/W//REQ
Transmit
Request
Receive
External
/SYNC
/SYNC
Output
/TRxC
/RTxC
/TRxC
PCLK
Input
Wait
RxD
TxD
3
7
11
Figure 71. SCC General Timing
4
9
16
19
20
12
8
15, 21
18, 21
14
5
13
17
19
20
1
2
6
10
S
MART
A
CCESS
C
ONTROLLER
Z80181
2-63
SAC
™