Fujitsu FR81S User Manual
CHAPTER 36: EXTERNAL BUS INTERFACE
3. Configuration
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : EXTERNAL BUS INTERFACE
FUJITSU SEMICONDUCTOR CONFIDENTIAL
5
3. Configuration
This section shows the configuration of the external bus interface.
Block Diagram in External Bus Interface
Figure 3-1 shows the block diagram in the external bus interface.
Figure 3-1 Block Diagram of External Bus Interface
External bus control
Signal generator
External bus
Access controller
AHB bus controller
Area
discriminator
IO
cell
E
xt
er
nal
b
us
R
egi
st
er
O
n-
ch
ip
bus
On chip bus
access
acceptor
Write data buffer
Read data
assembly
buffer
Read data buffer
External bus generation
Buffer
MB91520 Series
MN705-00010-1v0-E
1204