r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1253

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

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