IXXBB1 Fujitsu Microelectronics, Inc., IXXBB1 Datasheet - Page 57

• Manufacturer Part Number: IXXBB1
• Description: 32-bit Proprietary Microcontroller Cmos Fr60 Mb91301 Series
• Manufacturer: Fujitsu Microelectronics, Inc.

Block Diagram
address bus
Internal
32
data bus
Internal
32
address buffer
write buffer
read buffer
ASR
ASZ
RCR
External pin controller
SDRAM control
registers
refresh counter
control
1 or 2
&
switch
switch
All block control
comparator
under flow
MUX
MB91301 Series
ADDRESS BLOCK
DATA BLOCK
BRQ
BGRNT
RDY
External data bus
SRAS, SCAS,
SWE, MCLKE,
DQMUU, DQMUL,
DQMLU, DQMLL
RD
WR0, WR1,
WR2, WR3,
AS, BAA
External address
bus
CS0 to CS7
57