參數(shù)資料
型號(hào)： ISP1109BS
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： 通用總線(xiàn)功能
英文描述： Universal Serial Bus transceiver with carkit support
中文描述： LINE TRANSCEIVER, PQCC32
封裝： LEAD FREE, 5 X 5 MM, 0.85 MM HEIGHT, PLASTIC, MO-220, SOT617-1, HVQFN-32
文件頁(yè)數(shù)： 24/59頁(yè)
文件大小： 295K
代理商： ISP1109BS
9397 750 13355
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 — 14 July 2005
24 of 59
Philips Semiconductors
ISP1109
USB transceiver with carkit support
9.1.3
Interrupt registers
9.1.3.1
Interrupt Source register
Table 29
shows the bit allocation of this register that indicates the current state of the
signals that can generate an interrupt.
Table 28:
Bit
7
Resistor Control register (address Set = 06h, Clear = 07h) bit description
Symbol
Description
VBUS_CHRG
Charge V
BUS
through a pull-up resistor (R
UP(VBUS)
) that is
connected to REG3V3.
0 —
Disconnect the resistor
1 —
Connect the resistor.
VBUS_DISCHRG
Discharge V
BUS
through a pull-down resistor (R
DN(VBUS)
).
0 —
Disconnect the resistor
1 —
Connect the resistor.
reserved
reserved; cleared (set to 0)
ID_PULLDN
Connect pin ID to ground. See
Table 6
.
0 —
Disconnected
1 —
Connected.
DM_PULLDOWN
Connect the DM pull-down resistor (R
DN(DM)
).
0 —
DM pull-down resistor is disconnected
1 —
DM pull-down resistor is connected.
DP_PULLDOWN
Connect the DP pull-down resistor (R
DN(DP)
).
0 —
DP pull-down resistor is disconnected
1 —
DP pull-down resistor is connected.
DP_WKPU_EN
Connect the DP weak pull-up resistor (R
weakUP(DP)
).
0 —
DP weak pull-up resistor is disconnected
1 —
DP weak pull-up resistor is connected.
DP_PULLUP
Connect the DP pull-up resistor (R
UP(DP)
). The pull-up resistor will
be connected to the DP line only when V
BUS
> V
th(svc)
.
0 —
DP pull-up resistor is disconnected
1 —
DP pull-up resistor is connected, if V
BUS
> V
th(svc)
.
6
5
4
3
2
1
0
Table 29:
Bit
Symbol
Interrupt Source register (address 08h) bit allocation
7
6
DP_INT
reserved
5
4
3
2
1
0
ID_FLOAT
SE1
ID_GND
DP_HI
SESS_VLD
VBUS_
DET
0
R
Reset
Access
0
R
0
R
0
R
0
R
0
R
0
R
0
R
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