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6.3.4
The Function Configuration Registers FCONCSx
The Function Control registers are used to control the bus and ready functionality for a
selected address window. It can be distinguished between 8 and 16 bit bus and
multiplexed and demulitplexed accesses. Furthermore the READY functionality can be
programmed and defined whether the address window is enabled or not.
Function Configuration Register for Chip Select Channel 0
FCONCS0
15
14
13
12
0
0
0
r
r
r
Function Configuration Register for Chip Select Channel x
FCONCSx
15
14
13
12
0
0
0
r
r
r
x = 1 ... 7
Field
0
BTYP
0
User Manual
11
10
9
0
0
0
0
r
r
r
r
11
10
9
0
0
0
0
r
r
r
r
Bits
Typ
[15:6]
r
[5:4]
rw
3
r
XSFR
8
7
6
0
0
0
r
r
r
XSFR
8
7
6
0
0
0
r
r
r
Description
Reserved
The software always reads a '0'. Although these
bits are read only, the software should always
write a '0' in case of a write access.
Bus Type Selection
00
8 bit Demultiplexed
01
8 bit Multiplexed
10
16 bit Demultiplexed
11
16 bit Multiplexed
Reserved
The software always reads a '0'. Although this bit
is read only, the software should always write a '0'
in case of a write access.
6-163
User Manual
External Bus Controller
Reset value: 0021
5
4
3
2
RDY
0
BTYP
MOD
rw
r
rw
Reset value: 0000
5
4
3
2
RDY
0
BTYP
MOD
rw
r
rw
V 1.7, 2001-01
C166S V2
H
1
0
RDY
EN
EN
CS
rw
rw
H
1
0
RDY
EN
EN
CS
rw
rw
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