682
(1) Data write
TDR
TSR
(shift register)
Data 1
(2) Transfer from
TDR to TSR
Data 1
Data 1
; Data remains in TDR
(3) Serial data output
Note: When the ERS flag is set, it should be cleared until transfer of the last bit (D7 in LSB-first
transmission, D0 in MSB-first transmission) of the next transfer data to be transmitted has
been completed.
In case of normal transmission: TEND flag is set
In case of transmit error:
ERS flag is set
Steps (2) and (3) above are repeated until the TEND flag is set
I/O signal line output
Data 1
Data 1
Figure 17-5 Relation Between Transmit Operation and Internal Registers
Ds
D0
D1
D2
D3
D4
D5
D6
D7
Dp
I/O data
12.5etu
TXI
(TEND interrupt)
11.0etu
DE
Guard
time
When GM = 1
Legend
Ds
: Start bit
D0 to D7 : Data bits
Dp
: Parity bit
DE
: Error signal
When GM = 0
Figure 17-6 TEND Flag Generation Timing in Transmission Operation
Содержание H8S/2631
Страница 28: ...xviii Appendix G Package Dimensions 1154 ...
Страница 341: ...316 Transfer SAR or DAR DAR or SAR Block area First block Nth block Figure 9 8 Memory Mapping in Block Transfer Mode ...
Страница 918: ...905 ø DREQ0 DREQ1 tDRQS tDRQH Figure 25 19 DMAC DREQ Input Timing ...
Страница 955: ...943 A 2 Instruction Codes Table A 2 shows the instruction codes ...