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38K2 датащи(PDF) 80 Page - Renesas Technology Corp

номер детали 38K2
подробное описание детали  RENESAS 8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES
PDF  358 Pages
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производитель  RENESAS [Renesas Technology Corp]
домашняя страница  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

38K2 датащи(HTML) 80 Page - Renesas Technology Corp

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FUNCTIONAL DESCRIPTION
Rev.2.00
Oct 15, 2006
page 61 of 130
38K2 Group
REJ09B0338-0200
HARDWARE
Interrupt request bit
(IREQ2: Address 003D16)
USB HUB
HUB interrupt bit
(HUBIREQ: Address 002916)
DP1
Interrupt source
At HUB down-port 1 state change detected:
•Disconnected state detected
•Connected state detected
•Port error state detected
•Resume signal detected
•Bus state change detected
At HUB down-port 2 state change detected:
•Disconnected state detected
•Connected state detected
•Port error state detected
•Resume signal detected
•Bus state change detected
HUB Interrupt Function
The HUB function control circuit has one interrupt request consist-
ing of 10 interrupt sources each of which can be determined
through the interrupt source register. Table 8 shows the HUB inter-
rupt sources.
Table 8 HUB interrupt sources
DP2
[DPXREG1]
[DP1REQ]
PTDIS1
[DP2REQ]
DP1
[HUBIREQ]
DP2
DP1E
[HUBICON]
DP2E
USB HUB
interrupt request
PTCON1
PTERR1
PTRSM1
PTCHG1
PTDIS2
PTCON2
PTERR2
PTRSM2
PTCHG2
Fig. 91 USB HUB interrupt control



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