3069RF-ZTAT Datasheet, PDF (146/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

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 (burst access on match of address bits above
A3)
(Initial value)
Max. 8 words in burst access (burst access on match of address bits above
A4)
Bit 2—Expansion Memory Map Control (EMC): Selects either of the two memory maps.
Bit 2
EMC
0
1
Description
Selects the memory map shown in figure 3.2: see section 3.6, Memory Map* in
Each Operating Mode
Selects the memory map shown in figure 3.1: see section 3.6, Memory Map* in
Each Operating Mode
(Initial value)
Note: * When the memory map is switched using EMC, the following area combinations in the
on-chip RAM area cannot be used.
Mode 1 or 2
(EMC bit = 1)
(1)
H'FDEE0 to H'FDF1F
(2)
H'FFE80 to H'FFEDF
(3)
H'FFEE0 to H'FFF1F
(EMC bit = 0)
↔
H'FBEE0 to H'FBF1F
↔
H'FFF80 to H'FFFDF
↔
H'FDEE0 to H'FDF1F
Mode 3 or 4
(1)
H'FFDEE0 to H'FFDF1F
(2)
H'FFFE80 to H'FFFEDF
(3)
H'FFFEE0 to H'FFFF1F
↔
H'FFBEE0 to H'FFBF1F
↔
H'FFFF80 to H'FFFFDF
↔
H'FFDEE0 to H'FFDF1F
Mode 5
(1)
H'FFDEE0 to H'FFDF1F
(2)
H'FFFE80 to H'FFFEDF
(3)
H'FFFEE0 to H'FFFF1F
↔
H'FFBEE0 to H'FFBF1F
↔
H'FFFF80 to H'FFFFDF
↔
H'FFDEE0 to H'FFDF1F
Mode 7
(1)
H'FDEE0 to H'FDF1F
(2)
H'FFE80 to H'FFEDF
(3)
H'FFEE0 to H'FFF1F
↔
H'FBEE0 to H'FBF1F
↔
H'FFF80 to H'FFFDF
↔
H'FDEE0 to H'FDF1F
Rev. 5.0, 09/04, page 124 of 978