ISP1109BS Просмотр технического описания (PDF) - Philips Electronics
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ISP1109BS Datasheet PDF : 59 Pages
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Philips Semiconductors
ISP1109
USB transceiver with carkit support
Table 7: USB functional mode: transmit operation…continued
USB mode
Inputs
Outputs
DAT/VP
SE0/VM
DP
VP_VM
HIGH
LOW
HIGH
VP_VM
LOW
HIGH
LOW
VP_VM
HIGH
HIGH
HIGH
DM
LOW
HIGH
HIGH
7.9.2 Differential receiver
The operation of the differential receiver is described in Table 8.
Table 8: Differential receiver operation settings
Pin or bit Pin OE_N
SUSPEND
Bit
DAT_SE0
BI_DI
0
HIGH
1
0
0
HIGH
1
1
0
HIGH
0
X
X
LOW
X
X
1
X
X
X
Differential receiver
output differential value from DP and
DM to RCV
output differential value from DP and
DM to DAT/VP and RCV
output differential value from DP and
DM to RCV
0
X
The detailed behavior of the receive transceiver operation is shown in Table 9.
Table 9: USB functional mode: receive operation
USB mode
Pin or bit
Inputs
SUSPEND
DP
DM
DAT_SE0
0
LOW
LOW
DAT_SE0
0
HIGH
LOW
DAT_SE0
0
LOW
HIGH
DAT_SE0
0
HIGH
HIGH
DAT_SE0
1
LOW
LOW
DAT_SE0
1
HIGH
LOW
DAT_SE0
1
LOW
HIGH
DAT_SE0
1
HIGH
HIGH
VP_VM
0
LOW
LOW
VP_VM
0
HIGH
LOW
VP_VM
0
LOW
HIGH
VP_VM
0
HIGH
HIGH
VP_VM
1
LOW
LOW
VP_VM
1
HIGH
LOW
VP_VM
1
LOW
HIGH
VP_VM
1
HIGH
HIGH
Outputs
DAT/VP [1]
RCV
HIGH
LOW
RCV
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
SE0/VM [1]
HIGH
LOW
LOW
LOW
HIGH
LOW
LOW
LOW
LOW
LOW
HIGH
HIGH
LOW
LOW
HIGH
HIGH
RCV
last value of RCV
HIGH
LOW
last value of RCV
X
X
X
X
last value of RCV
HIGH
LOW
last value of RCV
X
X
X
X
[1] Applies only to bidirectional mode (bit BI_DI = 1). For unidirectional mode (bit BI_DI = 0), DAT/VP and SE0/VM are input-only pins.
9397 750 13355
Product data sheet
Rev. 01 — 14 July 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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