HD6417606 RENESAS [Renesas Technology Corp], HD6417606 Datasheet - Page 334

• Manufacturer Part Number: HD6417606
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 13 Host Interface (HIF)
Rev. 4.00 Sep. 13, 2007 Page 308 of 502
REJ09B0239-0400
Bit
11
10
Bit Name
DMD
DPOL
Initial
Value
0
0
R/W
R/W
R/W
Description
DREQ Mode
DREQ Polarity
Controls the assert mode for the HIFDREQ pin. For
details on the negate timing, see section 13.8,
External DMAC Interface.
00: For a DMAC transfer request to an external
01: For a DMAC transfer request to an external
10: For a DMAC transfer request to an external
11: For a DMAC transfer request to an external
device, low level is generated at the HIFDREQ
pin. The default for the HIFDREQ pin is high-level
output.
device, high level is generated at the HIFDREQ
pin. The default for the HIFDREQ pin is low-level
output.
device, falling edge is generated at the HIFDREQ
pin. The default for the HIFDREQ pin is high-level
output.
device, rising edge is generated at the HIFDREQ
pin. The default for the HIFDREQ pin is low-level
output.