64K x 16
SHARED RAM
UT1553 RTMP
ADDRESS BUS
DATA BUS
CONTROL
HOST
SUBSYSTEM
UT63M125
1553 TRANSCEIVER
1553 BUS A
1553 BUS B
Figure 2. RTMP General System Diagram
THESE TEN BITS FORM THE ADDRESS
OF THE STARTING LOCATION OF THE
64-WORD POINTER BLOCK.
0000H
MSB
BASE POINTER
DATA REGISTER
LSB
B B BB B
B U S SSS
P F I III
A S Z ZZZ
6 L 3 210
64-WORD
POINTER BLOCK
BUFFER MODE SELECT
THE RECEIVE DATA BUFFER SIZE
IS PROGRAMMED WITH THESE FOUR BITS.
64K x 16
SHARED RAM
RECEIVE DATA
POINTER (30)
TRANSMIT DATA
POINTER (30)
RECEIVE SUBADDRESS
DATA BUFFER -
8 TO 32K WORDS
TRANSMIT SUBADDRESS
DATA BUFFER
FFFFH
Figure 3. RTMP Receiveand Transmit Data Memory Mapping
RTMP-4