AM85C30-10 AMD [Advanced Micro Devices], AM85C30-10 Datasheet - Page 19

• Manufacturer Part Number: AM85C30-10
• Description: Enhanced Serial Communications Controller
• Manufacturer: AMD [Advanced Micro Devices]

D
D
D
7
7
7
D
D
D
6
6
6
D
D
D
5
5
5
Read Register 2
Read Register 0
Read Register 1
D
D
D
4
4
4
D
D
D
3
3
3
D
D
D
2
2
2
D
D
D
1
1
1
D
D
D
0
0
0
V0
V1
V2
V3
V4
V5
V6
V7
Rx Character Available
Zero Count
Tx Buffer Empty
DCD
SYNC Hunt
CTS
Tx Underrun/EOM
Break Abort
All Sent
Residue Code 2
Residue Code 1
Residue Code 0
Parity Error
Rx Overrun Error
CRC Framing Error
End-of-Frame (SDLC)
Figure 8. Read Register Bit Functions
*Modified in B Channel
Interrupt Vector*
Am85C30
D
D
D
7
7
7
**FIFO Overflow Status
*FIFO Data Available Status
D
D
D
6
6
6
D
D
D
5
5
5
Read Register 7
Read Register 3
Read Register 6
D
D
D
4
4
4
D
D
D
3
3
3
D
D
D
2
2
2
D
D
D
1
1
1
D
D
D
0
0
0
Channel B EXT STAT IP*
Channel B Tx IP*
Channel B Rx IP*
Channel A EXT STAT IP*
Channel A Tx IP*
Channel A Rx IP*
0
0
BC0
BC1
BC2
BC3
BC4
BC5
BC6
BC7
BC8
BC9
BC10
BC11
BC12
BC13
FDA*
FOY**
*Always 0 in B Channel
14-Bit
14-Bit
MSB Byte
Count
LSB Byte
Count
10
FIFO Status
AMD
10216F-12
19 bit
19