AM8530H AMD [Advanced Micro Devices], AM8530H Datasheet - Page 149

• Manufacturer Part Number: AM8530H
• Description: Serial Communications Controller
• Manufacturer: AMD [Advanced Micro Devices]

Register Description
6.3.11
RR15 reflects the value stored in WR15, the External/Status IE bits. The unused bit is
always returned as ‘0’ unless the corresponding bits in WR15 have been set to ‘1’. In the
NMOS SCC, bits D
D
7
Read Register 15
D
6
D
0
5
and D
D
4
D
2
3
always read 0. Figure 6–27 shows the bit positions for RR15.
Figure 6–27. Read Register 15
D
2
D
1
D
0
SDLC/HDLC Enhancement Status
Zero Count IE
10 x 19-Bit Frame Status FIFO Enable Status
DCD IE
SYNC/HUNT IE
CTS IE
Tx Underrun/EOM IE
Break/Abort IE
AMD
6–39