參數(shù)資料
型號(hào): PDIUSBD12
廠商: NXP Semiconductors N.V.
英文描述: nullUSB interface device with parallel bus
中文描述: nullUSB接口設(shè)備與并行總線
文件頁(yè)數(shù): 16/35頁(yè)
文件大?。?/td> 838K
代理商: PDIUSBD12
Philips Semiconductors
PDIUSBD12
USB interface device with parallel bus
Product data
Rev. 08 — 20 December 2001
16 of 35
9397 750 09238
Koninklijke Philips Electronics N.V. 2001. All rights reserved.
This command indicates the origin of an interrupt. The endpoint interrupt bits
(bits 0 to 5) are cleared by reading the endpoint last transaction status register
through Read Last Transaction Status command. The other bits are cleared after
reading the interrupt registers.
See
Table 8
for bit allocation.
Fig 9.
Interrupt Register, byte 1.
DMA EOT:
This bit signifies that DMA operation is completed.
Fig 10. Interrupt Register, byte 2: bit allocation.
Table 8:
Bit Symbol
7
SUSPEND CHANGE When the PDIUSBD12 did not receive 3 SOFs, it will go into
suspend state and the Suspend Change bit will be HIGH. Any
change to the suspend or awake state will set this bit HIGH and
generate an interrupt.
6
BUS RESET
After a bus reset an interrupt will be generated this bit will be ‘1’.
A bus reset is identical to a hardware reset through the RESET_N
pin with the exception that a bus reset generates an interrupt
notification and the device is enabled at default address 0.
Read interrupt register, byte 1: bit allocation
Description
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