HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 1122

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

Section 31
(3)
Some broadcast commands do not require command response.
Figure 31.2 shows an example of the command sequence for commands that do not require
command response.
Figure 31.3 shows the operational flow for commands that do not require command response.
• The settings needed to issue a command are made.
• The START bit in CMDSTRT is set to 1 to start command transmission.
• The end of command sequence is detected by poling the BUSY flag in CSTR or by the
Rev. 3.00 Jan. 18, 2008 Page 1060 of 1458
REJ09B0033-0300
Input/output pins
(CWRE)
(START)
CMDSTRT
(CMDI)
(BUSY)
command output end interrupt (CMDI).
INTSTR0
CMD
DAT
CLK
(REQ)
CSTR
Operation of Commands that do not Require Command Response
MultiMediaCard Interface (MMCIF)
Figure 31.2
that do not Require Command Response
Example of Command Sequence for Commands
Command transmission
started
Command output (48 bits)
Command transmission period
Command sequence period
Command transmission
ended