參數(shù)資料
型號： ISP1761BE
廠商： NXP SEMICONDUCTORS
元件分類： 總線控制器
英文描述： Hi-Speed Universal Serial Bus On-The-Go controller
中文描述： UNIVERSAL SERIAL BUS CONTROLLER, PQFP128
封裝： 14 X 20 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT425-1, LQFP-128
文件頁數(shù)： 93/158頁
文件大小： 724K
代理商： ISP1761BE
9397 750 13258
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 — 12 January 2005
93 of 158
Philips Semiconductors
ISP1761
Hi-Speed USB OTG controller
[1]
To use port 1 as a Host Controller, write 0080 0018h to this register after power on. To use port 1 as a
Peripheral Controller, write 0006 0400h to this register after power on.
9.5.3
OTG Interrupt registers
9.5.3.1
OTG Status register (R: 0378h)
This register indicates the current state of the signals that can generate an interrupt. The
bit allocation of the register is given in
Table 82
.
[1]
The reset value depends on the corresponding OTG status. For details, see
Table 83
.
2
DM_PULLDOWN
DM pull down
:
0 —
Disable
1 —
Enable.
DP pull down
:
0 —
Disable
1 —
Enable.
0 —
The pull-up resistor is disconnected from the DP line. The data
line pulsing is stopped.
1 —
An internal 1.5 k
pull-up resistor is present on the DP line.
The data line pulsing is started.
Remark:
When port 1 is in the peripheral mode or it plays the role of
a peripheral while the OTG functionality is enabled, it depends on
the setting of DP_PULLUP and the V
BUS
sensing signal to connect
the DP line to HIGH through a pull-up resister. (V
BUS
is an internal
signal. When 5 V is present on the V
BUS
pin, V
BUS
= 1.).
1
DP_PULLDOWN
0
DP_PULLUP
Table 81:
Bit
[1]
OTG Control register: bit description
…continued
Symbol
Description
Table 82:
Bit
Symbol
OTG Status register: bit allocation
15
14
13
12
11
10
9
8
reserved
OTG_
SUSPEND
0
R
2
DP_SRP
reserved
B_SE0_
SRP
0
R
0
VBUS_VLD
Reset
Access
Bit
Symbol
0
R
7
0
R
6
0
R
5
0
R
4
0
R
3
ID
0
R
1
B_SESS_
END
reserved
RMT_
CONN
0
R
A_B_SESS
_VLD
Reset
Access
[1]
0
R
0
R
[1]
0
R
[1]
[1]
R
R
R
R
Table 83:
Bit
15 to 11
10
9
8
OTG Status register: bit description
Symbol
-
OTG_SUSPEND
-
B_SE0_SRP
Description
reserved for future use
Indicates that the bus is idle for > 3 ms
reserved
2 ms of SE0 detected in the B-idle state
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