SH7763 Datasheet, PDF (1317/2026 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 30 SIM Card Module (SIM)
30.3.5 Transmit Data Register (SCTDR)
SCTDR is an 8-bit readable/writable register that stores data for serial transmission.
When the smart card interface detects a vacancy in the transmit shift register (SCTSR), transmit
data written to SCTDR is transferred to SCTSR, and serial transmission is initiated. During
SCTSR serial data transmission, if the next transmit data is written to SCTDR, continuous serial
transmission is possible.
Bit:
Initial value:
R/W:
7
1
R/W
6
1
R/W
5
1
R/W
4
3
SCTD[7:0]
1
1
R/W R/W
2
1
R/W
1
1
R/W
0
1
R/W
Bit
7 to 0
Initial
Bit Name Value
SCTD[7:0] All 1
R/W
R/W
Description
Transmit Data
Store data for serial transmission.
Rev. 1.00 Oct. 01, 2007 Page 1251 of 1956
REJ09B0256-0100