am85c30 Advanced Micro Devices, am85c30 Datasheet - Page 29

• Manufacturer Part Number: am85c30
• Description: Enhanced Serial Communications Controller
• Manufacturer: Advanced Micro Devices

Must Be Set
With the Point High command:
*Note:
Options 3, 4, 5, and 6 may be used regardless of whether SDLC/HDLC mode is selected.
to 0
D
7
A/ B
A/ B
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Ext. Read
Enable
D
6
PNT
PNT
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
2
2
WR7 —SDLC/HDLC Programmable Enhancements*
Rx comp.
CRC
D
Table 5. SDLC/HDLC Enhancements Enabled
5
PNT
PNT
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
1
1
Fast Mode
DTR/REQ
D
4
Am85C30
PNT
PNT
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Force TxD
0
0
High
D
3
SDLC/HDLC
Auto RTS
Turnoff
WR0B
WR1B
WR2
WR3B
WR4B
WR5B
WR6B
WR7B
WR0A
WR1A
WR2
WR3A
WR4A
WR5A
WR6A
WR7A
WR8B
WR9
WR10B
WR11B
WR12B
WR13B
WR14B
WR15B
WR8A
WR9
WR10A
WR11A
WR12A
WR13A
WR14A
WR15A
Write
Write
D
2
SDLC/HDLC
Auto EOM
Reset
D
1
RR0B
RR1B
RR2B
RR3B
RR4B (WR4B)
RR5B (WR5B)
(RR2B)
(RR3B)
RR0A
RR1A
RR2A
RR3A
RR4A (WR4A)
RR5A (WR5A)
(RR2A)
(RR3A)
RR8B
RR9 (WR3B)
RR10B
RR11B (WR10B)
RR12B
RR13B
RR14B (WR7 B)
RR15B
RR8A
RR9A (WR3A)
RR10A
RR11A (WR10A)
RR12A
RR13A
RR14A (WR7A)
RR15A
Read
Read
SDLC/HDLC
Tx Flag
AMD
Auto
D
0
29