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10-6
[5] Reading system memory
Read the specified number of bytes of data from the specified address in system memory.
[Write mode assignment]: None
[Communication format]
Command
Response
[Ex.] To read data from system memory addresses #201 and #202
(201(8) = 81(H), Data in cells: Hexadecimal notation)
Command
Response
[6] Writing system memory
Write the specified number of bytes of data from the specified address in system memory.
[Write mode assignment]: 2 (When the PC has been stopped with a "halt PC operation F8(H)"
command)
[Communication format]
Command
Response
[Ex.] To write data 01(H), 01(H) to data from system memory addresses #201 and #202
(201(8) = 81(H), Data in cells: Hexadecimal notation)
Command
Response
2B 00 43 4C 41 43 54 00 08 81 00 02 00
ACK CMD SUB ATTR SEG SADR N
"+" "C" "L" "A" CMD SUB ATTR SEG SADR N
2B 00 43 4C 41 43 44 00 08 81 00 02 00 01 01
ACK CMD SUB ATTR SEG SADR N #201 #202
Read data
"+" ACK "C" "L" "A" CMD SUB ATTR SEG SADR N D1
DN
2B 43 4C 41 43 44 00 08 81 00 02 00
"+" "C" "L" "A" CMD SUB ATTR SEG SADR N
"+" "C" "L" "A" CMD SUB ATTR SEG SA DR N D1
DN
"+" ACK "C" "L" "A" CMD SUB ATTR SEG SA DR N
2B 43 4C 41 43 54 00 08 81 00 02 00 01 01
"+" "C" "L" "A" CMD SUB ATTR SEG SADR N #201 #202
Write data
Symbol Data Details
CMD 43
(H)
Function code
SUB 44
(H)
Sub code
SEG 08
(H)
Read out segment
SADR 0000 to 00FF
(H)
Read out address #000 to #377
(8)
(2 byte data, in order of L and
H)
N 0001 to 0100
(H)
Number of read out bytes (2 byte data, in order of L and H)
D1 to DN See the example
Reading data of system memory (1 byte data x number of
reading data bytes)
Symbol Data Details
CMD 43
(H)
Function code
SUB 54
(H)
Sub code
SEG 08
(H)
Write segment
SADR 0000 to 00FF
(H)
Write address #000 to #377
(8)
(2 byte data, in order of L and H)
N 0001 to 0100F
(H)
Number of writing bytes (2 byte data, in order of L and H)
D1 to DN See the example
Write data of system memory (1 byte data x number of write
data bytes)