h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 553
h8s-2646
Manufacturer Part Number
h8s-2646
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2646.pdf
(1165 pages)
- Current page: 553 of 1165
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(1) Data write
(2) Transfer from
(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
I/O data
TXI
(TEND interrupt)
In case of normal transmission: TEND flag is set
In case of transmit error:
TDR to TSR
Legend:
Ds
D0 to D7 : Data bits
Dp
DE
Note : etu : Elementary time unit (time for fransfer of 1 bit)
When GM = 0
When GM = 1
transmission, D0 in MSB-first transmission) of the next transfer data to be transmitted has
been completed.
Figure 14.5 Relation Between Transmit Operation and Internal Registers
Figure 14.6 TEND Flag Generation Timing in Transmission Operation
: Start bit
: Parity bit
: Error signal
Ds
Data 1
Data 1
Data 1
TDR
D0 D1 D2 D3 D4 D5 D6 D7 Dp
ERS flag is set
Steps (2) and (3) above are repeated until the TEND flag is set
(shift register)
11.0 etu
Data 1
TSR
12.5 etu
Rev. 5.00 Sep 22, 2005 page 527 of 1136
; Data remains in TDR
Data 1
Section 14 Smart Card Interface
I/O signal line output
Guard
time
DE
REJ09B0257-0500
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