r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 429

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Bit
10
9
8
7
Bit Name
AMS
MDS1
MDS0
EDIE
Initial Value
0
0
0
0
R/W
R/W
R/W
R/W
R/W
Description
Address Mode Select
Selects single address mode or dual address mode.
When single address mode is selected, the EDACK
pin is valid.
0: Dual address mode
1: Single address mode
Mode Select 1 and 0
These bits specify the activation source, bus mode,
and transfer mode.
00: Auto request, cycle steal mode, normal transfer
01: Auto request, burst mode, normal transfer
10: External request, cycle steal mode, normal
11: External request, cycle steal mode, block
EXDMA Interrupt Enable
Enables or disables interrupt requests. When this
bit is set to 1, an interrupt is requested when the
IRF bit is set to 1. The interrupt request is cleared
by clearing this bit or the IRF bit to 0.
0: Interrupt request is not generated
1: Interrupt request is generated
mode
mode
transfer mode
transfer mode
Rev. 1.00 Sep. 19, 2008 Page 399 of 1342
Section 8 EXDMA Controller (EXDMAC)
REJ09B0467-0100