參數(shù)資料
型號: ISP1761BE,551
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: 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): 10/164頁
文件大?。?/td> 767K
代理商: ISP1761BE,551
ISP1761_5
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 05 — 13 March 2008
106 of 163
NXP Semiconductors
ISP1761
Hi-Speed USB OTG controller
10.5.3 Interrupt Conguration register
This 1 byte register determines the behavior and polarity of the INT output. The bit
allocation is shown in Table 102. When the USB SIE receives or generates an ACK, NAK
or NYET, it will generate interrupts depending on three Debug mode elds.
CDBGMOD[1:0] — Interrupts for the control endpoint 0
DDBGMODIN[1:0] — Interrupts for the DATA IN endpoints 1 to 7
DDBGMODOUT[1:0] — Interrupts for the DATA OUT endpoints 1 to 7
The Debug mode settings for CDBGMOD, DDBGMODIN and DDBGMODOUT allow you
to individually congure when the ISP1761 sends an interrupt to the external
microprocessor. Table 104 lists the available combinations.
Bit INTPOL controls the signal polarity of the INT output: active HIGH or LOW, rising or
falling edge. For level-triggering, bit INTLVL must be made logic 0. By setting INTLVL to
logic 1, an interrupt will generate a pulse of 60 ns (edge-triggering).
6
SNDRSU
Send Resume: Writing logic 1, followed by logic 0 will generate an
upstream resume signal of 10 ms duration, after a 5 ms delay.
5
GOSUSP
Go Suspend: Writing logic 1, followed by logic 0 will activate suspend
mode.
4
SFRESET
Soft Reset: Writing logic 1, followed by logic 0 will enable a
software-initiated reset to the ISP1761. A soft reset is similar to a
hardware-initiated reset using the RESET_N pin.
3
GLINTENA
Global Interrupt Enable: Logic 1 enables all interrupts. Individual
interrupts can be masked by clearing the corresponding bits in the
DcInterruptEnable register.
When this bit is not set, an unmasked interrupt will not generate an
interrupt trigger on the interrupt pin. If the global interrupt, however, is
enabled while there is any pending unmasked interrupt, an interrupt
signal will immediately be generated on the interrupt pin. If the interrupt
is set to pulse mode, the interrupt events that were generated before the
global interrupt is enabled may be dropped.
2
WKUPCS
Wake up on Chip Select: Logic 1 enables wake-up through a valid
register read on the ISP1761. A read will invoke the chip clock to restart.
A write to the register before the clock is stable may cause
malfunctioning.
1 to 0
-
reserved
Table 101. Mode register (address 020Ch) bit description …continued
Bit
Symbol
Description
Table 102. Interrupt Conguration register (address 0210h) bit allocation
Bit
7
6
5
4
3
2
1
0
Symbol
CDBGMOD[1:0]
DDBGMODIN[1:0]
DDBGMODOUT[1:0]
INTLVL
INTPOL
Reset
11111100
Bus reset
111111
unchanged
Access
R/W
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