Figure 19.22 Operational Flow For Commands With Read Data - Renesas H8S/2158 User Manual

Section 19 Multimedia Card Interface (MCIF)
Is FFI
No
interrupt detected?
Yes
No Does block
data read end?
Read data from FIFO
Set the RD_CONTI bit to 1

Figure 19.22 Operational Flow for Commands with Read Data

Rev. 3.00 Jan 25, 2006 page 682 of 872
REJ09B0286-0300
Command sequence start
Set the number of transfer
bytes (block size) to TBCR
Execute CMD16
Execute CMD17
interrupt detected?
No
interrupt detected?
Read response register
Response
No
interrupt detected?
Yes
Command sequence end
: Set block length
: Execute single-block data read
Yes
Is CTERI
No
Is CRPI
Yes
Error
status?
No error
Is DTI
Is DTERI or
CRCERI interrupt
Yes
Command sequence abnormal end
Set the CMDOFF bit to 1
detected?
Yes