US38024-BAG1 Renesas Electronics America, US38024-BAG1 Datasheet - Page 368
US38024-BAG1
Manufacturer Part Number
US38024-BAG1
Description
DEV EVALUATION KIT H8/38024
Manufacturer
Renesas Electronics America
Series
H8®r
Type
MCUr
Datasheet
1.US38024-BAG1.pdf
(684 pages)
Specifications of US38024-BAG1
Contents
2G (Second-generation) Evaluation Board, HEW debugger support, Cable and CD-ROM
For Use With/related Products
H8/38024
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 368 of 684
- Download datasheet (5Mb)
Section 10 Serial Communication Interface
10.2.7
Note: * Only a write of 0 for flag clearing is possible.
SSR is an 8-bit register containing status flags that indicate the operational status of SCI3.
SSR can be read or written to by the CPU at any time, but 1 cannot be written to bits TDRE,
RDRF, OER, PER, and FER.
Bits TEND and MPBR are read-only bits, and cannot be modified.
SSR is initialized to H'84 upon reset, and in standby, module standby, or watch mode.
Bit 7—Transmit Data Register Empty (TDRE)
Bit 7 indicates that transmit data has been transferred from TDR to TSR.
Bit 7
TDRE
0
1
Rev. 8.00 Mar. 09, 2010 Page 346 of 658
REJ09B0042-0800
Bit
Initial value
Read/Write
Serial Status Register (SSR)
Description
Transmit data written in TDR has not been transferred to TSR
Clearing conditions:
After reading TDRE = 1, cleared by writing 0 to TDRE
When data is written to TDR by an instruction
Transmit data has not been written to TDR, or transmit data written in
TDR has been transferred to TSR
Setting conditions:
When bit TE in SCR3 is cleared to 0
When data is transferred from TDR to TSR
R/(W) *
TDRE
7
1
R/(W) *
RDRF
6
0
R/(W) *
OER
5
0
R/(W) *
FER
4
0
R/(W) *
PER
3
0
TEND
R
2
1
MPBR
R
1
0
(initial value)
MPBT
R/W
0
0
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