參數資料
型號: ISP1161A1BM,557
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
封裝: 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-414-1, LQFP-64
文件頁數: 51/137頁
文件大?。?/td> 599K
代理商: ISP1161A1BM,557
Philips Semiconductors
ISP1161A1
USB single-chip host and device controller
Product data
Rev. 03 — 23 December 2004
19 of 136
9397 750 13961
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
8.6.2
HC’s interrupt output pin (INT1)
To program the four conguration modes of the HC’s interrupt output signal (INT1),
set bits InterruptPinTrigger and InterruptOutputPolarity of the
HcHardwareConguration register (20H to read, A0H to write). Bit InterruptPinEnable
is used as the master enable setting for pin INT1.
INT1 has many associated interrupt events, as shown as in Figure 20.
The interrupt events of the Hc
PInterrupt register (24H to read, A4H to write)
changes the status of pin INT1 when the corresponding bits of the
Hc
PInterruptEnable register (25H to read, A5H to write) and pin INT1’s global
enable bit (InterruptPinEnable of the HcHardwareConguration register) are all set to
enable status.
However, events that come from the HcInterruptStatus register (03H to read, 83H to
write) affect only bit OPR_Reg of the Hc
PInterrupt register. They cannot directly
change the status of pin INT1.
Fig 19. Interrupt pin operating modes.
MGT944
INT active
clear or disable INT
Mode 1 level triggered, active HIGH
INT
166 ns
Mode 2 edge triggered, active LOW
INT active
INT
166 ns
Mode 3 edge triggered, active HIGH
INT active
clear or disable INT
Mode 0 level triggered, active LOW
INT
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