mb91307r Fujitsu Microelectronics, Inc., mb91307r Datasheet - Page 69

• Manufacturer Part Number: mb91307r
• Description: 32-bit Microcontroller Cmos Fr60 Mb91307 Series
• Manufacturer: Fujitsu Microelectronics, Inc.

< Normal bus interface >
< Memory interface >
(3) Block Diagram
(4) I/O Pins
*: For burst ROM, Flash use
These are the external interface pins. (Some pins have dual functions.)
A24 to A0, D31 to D16
CS0, CS1, CS2, CS3, CS4, CS5, CS6, CS7
AS, SYSCLK, MCLK
RD
WE, WR0 (UUB) , WR1 (ULB)
RDY, BRQ, BGRNT
MCLK
LBA ( = AS) , BAA*
address bus
Internal
32
Internal data
bus
32
Address buffer
Write buffer
Read buffer
ASR
ASZ
External pin control block
Resisters &
+1 or +2
controls
Switch
Switch
All block control
Comparator
MUX
MB91307 Series
Address block
Data block
BRQ
BGRNT
RDY
RD
WR0, WR1
AS, BAA
External data bus
External address bus
CS0 to CS7
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