HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 704

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 15 Smart Card Interface
Bits 3 to 0—Operate in the same way as for the normal SCI. For details, see section 14.2.7, Serial
Status Register (SSR).
However, the setting conditions for the TEND bit, are as shown below.
Bit 2
TEND
0
1
Notes: etu: Elementary time unit (time for transfer of 1 bit)
Rev.6.00 Sep. 27, 2007 Page 674 of 1268
REJ09B0220-0600
* The DMAC is not supported in the H8S/2321.
Description
Indicates transfer in progress
[Clearing conditions]
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•
Indicates transfer complete
[Setting conditions]
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•
•
•
•
•
When 0 is written to TDRE after reading TDRE = 1
When the DMAC * or DTC is activated by a TXI interrupt and writes data to TDR
Upon reset, and in standby mode or module stop mode
When the TE bit in SCR is 0 and the ERS bit is also 0
When TDRE = 1 and ERS = 0 (normal transmission) 2.5 etu after transmission of a
1-byte serial character when GM = 0 and BLK = 0
When TDRE = 1 and ERS = 0 (normal transmission) 1.5 etu after transmission of a
1-byte serial character when GM = 0 and BLK = 1
When TDRE = 1 and ERS = 0 (normal transmission) 1.0 etu after transmission of a
1-byte serial character when GM = 1 and BLK = 0
When TDRE = 1 and ERS = 0 (normal transmission) 1.0 etu after transmission of a
1-byte serial character when GM = 1 and BLK = 1
(Initial value)