Z80181 Zilog., Z80181 Datasheet - Page 66

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

Zilog
AC CHARACTERISTICS (Continued)
SCC System Timing
Notes for Table E:
[E1] Open-drain output, measured with open-drain test load.
[E2] /RXC is /RTxC or /TRxC, whichever is supplying the receiver clock.
[E3] /TXC is /TRxC or /RTxC, whichever is supplying the transmitter clock.
2-66
No
1
2
3
4
5
6
7
8
9
10
Symbol
TdRxC(REQ)
TdRxC(W)
TdRxC(SY)
TdRxC(INT)
TdTxC(REQ)
TdTxC(W)
TdRxC(DRQ)
TdTxC(INT)
TdSY(INT)
TdEXT(INT)
Parameter
/RxC to /W//REQ Valid
/RxC to Wait inactive
/RxC to /SYNC Valid
/RxC to /INT Valid
/TxC to /W//REQ Valid
/TxC to Wait inactive
/TxC to /DTR//REQ Valid
/TxC to /INT Valid
/SYNC to /INT Valid
/DCD or /CTS to /INT Valid
Table E. SCC System Timing Parameters
Min
10
8
8
4
5
5
4
6
2
2
Z8018110
Max
12
14
16
11
10
7
8
7
6
6
S
MART
Unit
TcC
TcC
TcC
TcC
TcC
TcC
TcC
TcC
TcC
TcC
A
CCESS
C
DS971800500
ONTROLLER
[E1,2]
[E1,2]
[E1,3]
[E1,3]
Note
[E2]
[E2]
[E3]
[E3]
[E1]
[E1]
Z80181
SAC
™