H8SSLASH2218 datasheet(536/750 Pages) RENESAS

536 / 750 page

Section 14 Universal Serial Bus (USB)

Rev.6.00 Jun. 03, 2008 Page 488 of 698

REJ09B0074-0600

Bit

Bit Name

Initial Value

R/W

Description

7 to 3 —

All 0

Reserved

These bits are always read as 0 and cannot be

modified.

EP1DE

EP1 Data Enable

0: Indicates that the EP1 contains no valid data.

1: Indicates that the EP1 contains valid data.

EP1DE corresponds to the negative-electrode

signal for EP1ALLEMPTYs in UIFR1.

EP3DE

EP3 Data Enable

0: Indicates that the EP3 contains no valid data.

1: Indicates that the EP3 contains valid data.

EP0iDE

EP0i Data Enable

0: Indicates that the EP0i contains no valid data.

1: Indicates that the EP0i contains valid data.

14.3.26

USB Configuration Value Register (UCVR)

UCVR stores the Configuration value when the Set_Configuration command is received from the

host.

Bit

Bit Name

Initial Value

R/W

Description

7, 6

—

All 0

Reserved

These bits are always read as 0 and cannot be

modified.

CNFV0

Configuration Value 0

Stores the Configuration value when the

Set_Configuration command is received. CNFV0 is

modified when the SETC bit in UIFR3 is set to 1.

4 to 0 —

All 0

Reserved

These bits are always read as 0 and cannot be

modified.

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