Fujitsu F2MCTM-16LX Hardware Manual page 534

CHAPTER 22 ADDRESS MATCH DETECTION FUNCTION
2
E PROM Memory Map
Figure 22.4-3 shows the allocation of the patch program and data at storing the patch program in E
Patch program byte count
The total byte count of the patch program (main body) is stored. If the byte count is "00
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 to PADR5).
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>.
It is similar for the correction program 2 to 5.
518
Figure 22.4-3 Allocation of E
2
E PROM
address
Patch program byte count
0 0 0 0
H
Detect address 0 (Low)
0 0 0 1
H
PADR0 Detect address 0 (Middle)
0 0 0 2
H
Detect address 0 (High)
0 0 0 3
H
Patch program byte count
0 0 0 4
H
Detect address 1 (Low)
0 0 0 5
H
Detect address 1 (Middle)
PADR1
0 0 0 6
H
0 0 0 7 Detect address 1 (High)
H
.
.
.
Patch program byte count
0 0 1 4
H
Detect address 5 (Low)
0 0 1 5
H
PADR5 Detect address 5 (Middle)
0 0 1 6
H
Detect address 5 (High)
0 0 1 7
H
0 0 2 0
H
0 0 3 0
H
.
.
.
0 0 7 0
H
2
PROM Patch Program and Data
For patch program 0
For patch program 1
.
.
.
For patch program 5
Patch program 0
(main body)
Patch program 1
(main body)
.
.
.
Patch program 5
(main body)
2
PROM.
", it indicates that
H