SH7721 datasheet(853/1524 Pages) RENESAS

Part #	SH7721

Description	Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

PDF	1524 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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853 / 1524 page

Section 24

USB Host Controller (USBH)

Rev. 3.00 Jan. 18, 2008 Page 791 of 1458

REJ09B0033-0300

Bit

Bit Name

Initial

Value

R/W

Description

OCI

Over Current Indicator

This bit reports the over-current condition. When this bit is

set, an over-current condition exists. When this bit is

cleared, all power operations are normal. This bit is always

0 when the over-current protection at each port is carried

out.

0: All power operations are normal

1: An over-current condition exists

(Read) Local Power Status

The root hub does not support the local power status

function. Therefore, the bit is always read 0.

LPS

R/W

(Write) Clear Global Power

This bit is written to 1 to power on (the PPS bit in

USBHRPS is cleared) all ports in global power mode

(PSM in USBHRDA = 0).

In the power mode at each port, the PPS bit is cleared to

the port in which the PPCM bit is not set. Writing a 0 has

no effect.

SH7721 Datasheet(PDF) 853 Page - Renesas Technology Corp