r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 976

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 16 USB Function Module (USB)
16.3.32 Transceiver Test Register 1 (TRNTREG1)
TRNTREG1 is a test register that can monitor the on-chip transceiver input signal.
Setting bits PTSTE and txenl in TRNTREG0 to 1 enables monitoring the on-chip transceiver input
signal. Table 16.5 shows the relationship between pin input and TRNTREG1 monitoring value.
Rev. 1.00 Sep. 19, 2008 Page 946 of 1342
REJ09B0467-0100
Bit
7 to 3
2
1
0
Bit Name

xver_data
dpls
dmns
Initial
Value
All 0
0
0
0
R/W

R
R
R
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
On-Chip Transceiver Input Signal Monitor
xver_data: Monitors the differential input level
dpls:
dmns:
(xver_data) signal of the on-chip
transceiver.
Monitors the USD+ (dpls) signal of the on-
chip transceiver.
Monitors the USD- (dmns) signal of the on-
chip transceiver.