r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1255

• 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 (4)
Read data from FIFO
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
Set RD_CONTI to 1
FFI interrupt
detected?
Yes
No
No
No
No
(Pre-defined Multiple Block Transfer)
Read data from FIFO
CRCERI interrupt
Set CMDOFF to 1
DTERI interrupt
DTERI interrupt
Len (1 + n (DTI))
TBNCR value
DTI interrupt
BTI interrupt
- Cap × n (FFI)
= n (DTI) ?
detected?
detected?
detected?
detected?
detected?
Cap ≥
1
No
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
End of command sequence
Set CMDOFF to 1
Execute CMD12
Clear FIFO
Rev.1.00 Jan. 10, 2008 Page 1225 of 1658
24. Multimedia Card Interface (MMCIF)
Set CMDOFF to 1
REJ09B0261-0100
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