Figure 19.6 Operational Flow For Commands Without Data Transfer - Renesas H8S/2158 User Manual

Section 19 Multimedia Card Interface (MCIF)
Not Busy
No
Command sequence end

Figure 19.6 Operational Flow for Commands without Data Transfer

Rev. 3.00 Jan 25, 2006 page 662 of 872
REJ09B0286-0300
Set command type to CMDTYR
Set command response type
Set the START bit in CMDSTRT to 1
Yes
Is data busy state
judged?
Busy
Is DBSYI interrupt
detected?
Yes
Command sequence start
Set command data to
CMDR0 to CMDR4
to RSPTYR
Is CRPI interrupt
detected?
No
Is CTERI or
CRCERI interrupt
detected?
No
Yes
Command sequence
abnormally ended