SH7785 Datasheet, PDF (1253/1692 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

1
No
No
No
FFI interrupt
detected?
Yes
Yes
DTERI interrupt
detected?
No
Cap ≥
Len (1 + n (DTI))
- Cap × n (FFI)
Yes
CRCERI interrupt
Yes
detected?
No
DTERI interrupt
Yes
detected?
No
DTI interrupt
detected?
Yes
No
Read next block?
Yes
Read data from FIFO
Set RD_CONTI to 1
24. Multimedia Card Interface (MMCIF)
2
Read data from FIFO
Set CMDOFF to 1
Execute CMD12
Set CMDOFF to 1
Execute CMD12
Clear FIFO
Set CMDOFF to 1
End of command sequence
Legend:
Len:
Cap:
n (FFI):
n (DTI):
Block length [bytes]
FIFO size [bytes]
Number of FIFO full interrupts (FFI) from the start of read sequence
Number of data transfer end interrupts (DTI) from the start of read sequence
Figure 24.13 Example of Operational Flow for Commands with Read Data (2)
(Open-ended Multiple Block Transfer)
Rev.1.00 Jan. 10, 2008 Page 1223 of 1658
REJ09B0261-0100