Fujitsu F2MC-16LX Hardware Manual page 475

2
I E
PROM Memory Map
Figure 24.4-3 "Allocation of E
program and data at storing the patch program in E
Figure 24.4-3 Allocation of E
❍ Patch program byte count
The total byte count of the patch program (main body) is stored. If the byte count is "00
indicates that no patch program is provided.
❍ Detect address (24 bits)
The address where the instruction code is replaced by the INT9 instruction code due to program
error is stored. This address is set in the detection address setting registers (PADR0 and
PADR1).
❍ Patch program (main body)
The program executed by the INT9 interrupt processing when the program address matches the
detect address is stored. Patch program 0 is allocated from any predetermined address. Patch
program 1 is allocated from the address indicating <starting address of patch program 0 + total
byte count of patch program 0>.
CHAPTER 24 ADDRESS MATCH DETECTION FUNCTION
2
PROM Patch Program and Data" shows the allocation of the patch
2
E PROM
Address
0 0 0 0 Patch program byte count
H
0 0 0 1
Detect address 0 (Low)
H
PADR0
0 0 0 2 Detect address 0 (Middle)
H
0 0 0 3
Detect address 0 (High)
H
0 0 0 4 Patch program byte count
H
0 0 0 5 Detect address 1 (Low)
H
PADR1 0 0 0 6
Detect address 1 (Middle)
H
0 0 0 7 Detect address 1 (High)
H
0 0 1 0
H
Patch program 0
(main body)
0 0 2 0
H
Patch program 1
(main body)
2
PROM.
2
PROM Patch Program and Data
For patch program 0
For patch program 1
", it
H
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