HD64F2638F20J Datasheet, PDF (209/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 7 Bus Controller
Bit 5—Burst ROM Enable (BRSTRM): Selects whether area 0 is used as a burst ROM
interface.
Bit 5
BRSTRM
0
1
Description
Area 0 is basic bus interface
Area 0 is burst ROM interface
(Initial value)
Bit 4—Burst Cycle Select 1 (BRSTS1): Selects the number of burst cycles for the burst ROM
interface.
Bit 4
BRSTS1
0
1
Description
Burst cycle comprises 1 state
Burst cycle comprises 2 states
(Initial value)
Bit 3—Burst Cycle Select 0 (BRSTS0): Selects the number of words that can be accessed in a
burst ROM interface burst access.
Bit 3
BRSTS0
0
1
Description
Max. 4 words in burst access
Max. 8 words in burst access
(Initial value)
Bits 2 to 0—Reserved: Only 0 should be written to these bits.
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 159 of 1458