H8SXSLASH1663 datasheet(834/1158 Pages) RENESAS

834 / 1158 page

Section 16 USB Function Module (USB)

Rev.1.00 Jun. 07, 2006 Page 782 of 1102

REJ09B0294-0100

16.3.26

Transceiver Test Register 0 (TRNTREG0)

TRNTREG0 controls the on-chip transceiver output signals. Setting the PTSTE bit to 1 specifies

the transceiver output signals (USD+ and USD-) arbitrarily. Table 16.4 shows the relationship

between TRNTREG0 setting and pin output.

Bit

Bit Name

Initial Value

R/W

PTSTE

R/W



SUSPEND

R/W

txenl

R/W

txse0

R/W

txdata

R/W

Bit

Bit Name

Initial

Value

R/W

Description

PTSTE

R/W

Pin Test Enable

Enables the test control for the on-chip transceiver

output pins (USD+ and USD-).

6 to 4



All 0

Reserved

These bits are always read as 0. The write value

should always be 0.

SUSPEND

txenl

txse0

txdata

R/W

On-Chip Transceiver Output Signal Setting

SUSPEND: Sets the (SUSPEND) signal of the on-chip

transceiver.

txenl:

Sets the output enable (txenl) signal of the

on-chip transceiver.

txse0:

Sets the Signal-ended 0 (txse0) signal of

the on-chip transceiver.

txdata:

Sets the (txdata) signal of the on-chip

transceiver.

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