HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 1063

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

30.3.7
SCRSR is a register that receives serial data.
The smart card interface receives serial data input from the SIM_RXD pin in order, from the LSB
or MSB, and sets it in SCRSR, converting it to parallel data. When reception of one byte of data is
completed, the data is automatically transferred to SCRDR. The CPU or DMAC cannot directly
read from or write to SCRSR.
30.3.8
SCRDR is an 8-bit read-only register that stores received serial data.
When reception of one byte of serial data is completed, the smart card interface transfers the
received serial data from the receive shift register (SCRSR) to SCRDR for storage, and completes
the receive operation. Thereafter, SCRSR can receive data. In this way, SCRSR and SCRDR
constitute a double buffer, enabling continuous reception of data. SCRDR cannot be written to by
the CPU or DMAC.
Bit
0
Bit
7 to 0
Bit Name

Bit Name
SCRD7 to
SCRD0
Receive Shift Register (SCRSR)
Receive Data Register (SCRDR)
Initial
Value
0
Initial
Value
All 0
R/W
R
R/W
R
Description
Reserved
This bit is always read as 0. The write value should always
be 0.
Description
Receive Data
Store received serial data.
Rev. 3.00 Jan. 18, 2008 Page 1001 of 1458
Section 30
SIM Card Module (SIM)
REJ09B0033-0300