Fujitsu FR81S User Manual
CHAPTER 36: EXTERNAL BUS INTERFACE
4. Registers
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : EXTERNAL BUS INTERFACE
FUJITSU SEMICONDUCTOR CONFIDENTIAL
10
4.2. CS Bus Setting Registers: ACR0 to ACR3 (Area
Configuration Register 0-3)
The bit configurations of the CS bus setting registers are shown below.
These registers set the bus of the CS area. Each CS area has a single ACR register. See "5.10 CS Setting
Sequence" for the setting procedure for these registers.
ACR0 : Address 0640
H
(Access : Word)
ACR1 : Address 0644
H
(Access : Word)
ACR2 : Address 0648
H
(Access : Word)
ACR3 : Address 064C
H
(Access : Word)
bit31
bit30
bit29
bit28
bit27
bit26
bit25
bit24
Reserved
Initial value
*
*
*
*
*
*
*
*
Attribute
R0,W0
R0,W0
R0,W0
R0,W0
R0,W0
R0,W0
R0,W0
R0,W0
bit23
bit22
bit21
bit20
bit19
bit18
bit17
bit16
Reserved
Initial value
*
*
*
*
*
*
*
*
Attribute
R0,W0
R0,W0
R0,W0
R0,W0
R0,W0
R0,W0
R0,W0
R0,W0
bit15
bit14
bit13
bit12
bit11
bit10
bit9
bit8
Reserved
Initial value
*
*
*
*
*
*
*
*
Attribute
R0,W0
R0,W0
R0,W0
R0,W0
R0,W0
R0,W0
R0,W0
R0,W0
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
DBW[1:0]
Reserved
ADTY
BSTY
Reserved
Reserved
Initial value
*
*
*
*
*
*
*
*
Attribute
R/W
R/W
R0,W0
R0,W0
R/W
R/W
RX,W0
RX,W0
* [Initial value] ACR0
0000_0000_0000_0000_0000_0000_0100_0000
B
Not ACR0
0000_0000_0000_0000_0000_0000_XX00_XX0X
B
MB91520 Series
MN705-00010-1v0-E
1209