IBM39STB032xx
IBM39STB034xx
Preliminary
STB032xx and STB034xx Digital Set-Top Box Integrated Controllers
IEEE 1284 Mode Handshake Timing Values
Symbol
Parameter
Min
Max
1
Units
sec
T
Host response time
0
H
T
Infinite response time
0
Infinite
35
T
Peripheral response time
0
ms
L
R
P
D
T
T
T
Peripheral response time (ECP mode only)
Minimum setup or pulse width
0
0.5 µs
0
µS
Minimum data setup time (ECP Modes only)
Nibble Mode Handshake
HostBusy
(nAutoFd)
PtrClk
(nAck)
Data Bit 4
Data Bit 5
Data Bit 6
Data bit 7
nError
Select
PError
Busy
Data Bit 0
Data Bit 1
Data Bit 2
Data bit 3
1284 Active
(nSelectIn)
TL
TP TH
TP TH
TP
TL
TH
T
TL
TL
Note: See the table, “IEEE 1284 Mode Handshake Timing Values,” for symbol values.
STB03_sds_041800.fm.01
April 18, 2000
Electrical Information
Page 45 of 55
IBM [ IBM ]
