Renesas R5S72621 User Manual
Section 21 IEBus
TM
Controller
Page 1134 of 2108
R01UH0134EJ0400 Rev. 4.00
Sep
24,
2014
SH7262 Group, SH7264 Group
21.3.21
IEBus Transmit Data Buffer 001 to 128 (IETB001 to IETB128)
IETB001 to IETB128 are 128-byte (8
128) buffers to which data to be transmitted during master
transmission is written.
The initial values in IETB001 to IETB128 are undefined.
7
6
5
4
3
2
1
0
-
[Legend]
n = 001 to 128
n = 001 to 128
-
-
-
-
-
-
-
W
*
W
*
W
*
W
*
W
*
W
*
W
*
W
*
Bit:
Initial value:
R/W:
TBn
Bit Bit
Name
Initial
Value R/W
Value R/W
Description
7 to 0
TBn
Undefined W*
IEBus Transmit Data Buffer
Data to be transmitted in the data field during master
transmission is written to TB001 to TB128.
transmission is written to TB001 to TB128.
Data is written starting with TB001 for the start 1-byte
data, followed by TB002 and TB003 and so on
according to the transmission order, and TB128 stores
the last data.
data, followed by TB002 and TB003 and so on
according to the transmission order, and TB128 stores
the last data.
Note: * Writing to these bits during master transmission (MRQ in IEFLG is 1) is prohibited