38K2 datasheet(80/358 Pages) RENESAS

Part #	38K2

Description	RENESAS 8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES

PDF	358 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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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

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

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