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R01UH0336EJ0102 Rev.1.02
Page 1238 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 22 Synchronous/Asynchronous Serial Interface H (UARTH)
(17)
URTHnETX – UARTHn Extension bit Transmit Data Register
This register is used to store data for transmission.
Data for transmission in the URTHnETX register are stored in the transmission
shift register in accord with the data format specifications for transmission.
This register corresponds to the bits 23 to 16 in the URTHnETXW register.
Access
This register can be read/written in 8-bit units.
Address
<URTHn_base1> + 34
H
Initial value
11
H
A reset from any source or, when UARTHn operation is enabled, setting
URTHnCTL0.URTHnPW = 1, will initialize the bits.
7
6
5
4
3
2
1
0
0
0
0
URTHn
ETXH8
0
0
0
URTHn
ETXL8
R
R
R
R/W
R
R
R
R/W
Table 22-25
URTHnETX Register Contents
Bit Position
Bit Name
Function
4
URTHn
ETXH8
Extension bit of transmit data (See Table 22-27, Accesses according to
Transmission Modes.)
0
URTHn
ETXL8
Extension bit of transmit data (See Table 22-27, Accesses according to
Transmission Modes.)