HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 535

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

(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
In case of normal transmission: TEND flag is set
In case of transmit error:
TDR to TSR
I/O data
TXI
(TEND interrupt)
Legend:
Ds
D0 to D7 : Data bits
Dp
DE
When GM = 0
When GM = 1
transmission, D0 in MSB-first transmission) of the next transfer data to be transmitted has
been completed.
Figure 13.5 Relation Between Transmit Operation and Internal Registers
Figure 13.6 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)
11.0etu
Data 1
TSR
12.5etu
Rev.3.00 Mar. 26, 2007 Page 493 of 772
; Data remains in TDR
Data 1
Section 13 Smart Card Interface
I/O signal line output
Guard
time
DE
REJ09B0355-0300