13 / 52 page
RTI-13
For “wrap-around” applications (transmission of data
previously received), force the RTI to store and receive
messages on one memory page. To accomplish one-page
operation do not use the T/R output pin. Eliminating the T/
R limits the RTI access to only one page and the RTI will
not differentiate between receive and transmit pages.
Table 3. RTI Memory Map
1: Receive Memory Map
2: Transmit Memory map
Block #
Operation
Address Field (hex)
Block #
Operation
Address Field (hex)
1
Mode Code 1
000 to 01F
1
Mode Code 1
400 to 41F
2
Subaddress 1
020 to 03F
2
Subaddress 1
420 to 43F
3
Subaddress 2
040 to 05F
3
Subaddress 2
440 to 45F
4
Subaddress 3
060 to 07F
4
Subaddress 3
460 to 47F
5
Subaddress 4
080 to 09F
5
Subaddress 4
480 to 49F
6
Subaddress 5
0A0 to 0BF
6
Subaddress 5
4A0 to 4BF
7
Subaddress 6
0C0 to 0DF
7
Subaddress 6
4C0 to 4DF
8
Subaddress 7
0E0 to 0FF
8
Subaddress 7
4E0 to 4FF
9
Subaddress 8
100 to 11F
9
Subaddress 8
500 to 51F
10
Subaddress 9
120 to 13F
10
Subaddress 9
520 to 53F
11
Subaddress 10
140 to 15F
11
Subaddress 10
540 to 55F
12
Subaddress 11
160 to 17F
12
Subaddress 11
560 to 57F
13
Subaddress 12
180 to 19F
13
Subaddress 12
580 to 59F
14
Subaddress 13
1A0 to 1BF
14
Subaddress 13
5A0 to 5BF
15
Subaddress 14
1C0 to 1DF
15
Subaddress 14
5C0 to 5DF
16
Subaddress 15
1E0 to 1FF
16
Subaddress 15
5E0 to 5FF
17
Subaddress 16
200 to 21F
17
Subaddress 16
600 to 61F
18
Subaddress 17
220 to 23F
18
Subaddress 17
620 to 63F
19
Subaddress 18
240 to 25F
19
Subaddress 18
640 to 65F
20
Subaddress 19
260 to 27F
20
Subaddress 19
660 to 67F
21
Subaddress 20
280 to 29F
21
Subaddress 20
680 to 69F
22
Subaddress 21
2A0 to 2BF
22
Subaddress 21
6A0 to 6BF
23
Subaddress 22
2C0 to 2DF
23
Subaddress 22
6C0 to 6DF
24
Subaddress 23
2E0 to 2FF
24
Subaddress 23
6E0 to 6FF
25
Subaddress 24
300 to 31F
25
Subaddress 24
700 to 71F
26
Subaddress 25
320 to 33F
26
Subaddress 25
720 to 73F
27
Subaddress 26
340 to 35F
27
Subaddress 26
740 to 75F
28
Subaddress 27
360 to 37F
28
Subaddress 27
760 to 77F
29
Subaddress 28
380 to 39F
29
Subaddress 28
780 to 79F
30
Subaddress 29
3A0 to 3BF
30
Subaddress 29
7A0 to 7BF
31
Subaddress 30
3C0 to 3DF
31
Subaddress 30
7C0 to 7DF
32
Unused
3E0 to 3FF
32
Unused
7E0 to 7FF
Notes:
1. Receive mode codes with data:
- Synchronize with data
- Selected Transmitter Shutdown (Illegal)
- Override Selected Transmitter Shutdown (Illegal)
2. Transmit mode codes with data:
- Transmit Vector Word
- Transmit Bit Word
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