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Block diagram of address match detection function – FUJITSU F2MCTM-16LX User Manual

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CHAPTER 22 ADDRESS MATCH DETECTION FUNCTION

22.2

Block Diagram of Address Match Detection Function

The address match detection module consists of the following blocks:
• Address latch
• Address detection control register (PACSR0/PACSR1)
• Detect address setting registers (PADR0 to PADR5)

Block Diagram of Address Match Detection Function

Figure 22.2-1 shows the block diagram of the address match detection function.

Figure 22.2-1 Block Diagram of the Address Match Detection Function

Address latch

The address latch stores the value of the address output to the internal data bus.

Address detection control register (PACSR0/PACSR1)

The address detection control register enables or disables output of an interrupt at an address match.

Detect address setting registers (PADR0 to PADR5)

The detect address setting registers set the address that is compared with the value of the address latch.

AD1E

AD2E

AD0E

PACSR0

AD4E

AD5E

AD3E

PACSR1

Address latch

Detection address setting register 0

PADR0 (24 bits)

PADR1 (24 bits)

PADR5 (24 bits)

Detection address setting register 1

Detection address setting register 5

Comparator

INT9 instruction

(INT9 instruction

generation)

Reserved

Inte

rn

al

dat

a b

u

s

Address detection control register 0 (PACSR0)

Address detection control register 1 (PACSR1)

Reserved: Always setting to 0.

Reserved

Reserved

Reserved

Reserved

Reserved Reserved

Reserved

Reserved

Reserved