CD2401 Intel, CD2401 Datasheet - Page 82

• Manufacturer Part Number: CD2401
• Description: Multi-protocol Communications Controller
• Manufacturer: Intel

CD2401 — Multi-Protocol Communications Controller
6.3.5
1.In the BBCC2 state: if RxITB = 1, go to state BGETHDR, else go to SYN Hunt state.
2.
3.
82
SYN
DLE (RxITB = 0)
DLE (RxITB = 1)
ENQ (RxITB = 0)
ENQ (RxITB = 1)
STX
SOH
EOT (RxITB = 0)
EOT (RxITB = 1)
ETX (RxITB = 1)
ETB (RxITB = 1)
ITB
ETX (RxITB = 0)
ETB (RxITB = 0)
PAD
COR6
(RxITB = 0)
COR6
(RxITB = 1)
None of the above
(RxITB = 0)
None of the above
(RxITB = 1)
If RxITB = 1, calculate BCC, else do not calculate BCC.
The special frame termination character is activated if COR6 is not equal to x’10. If COR6 = x’10, disregard these two rows.
Table 16. Bisync Receive State Transition
Character
3
c
Note:If parity is used, parity is computed/checked on each character, but the LRC of the parity bits is not
checked.
Receive State Table
Table 16 on page 82
receive microcode character processing, and the definition of the states.
BGETHDR
Hunt
Hunt
Hunt
2 i c
3 i
3 i
3 i
3 i
1 i
3 i
0
0
6
6
6
6
6
6
6
6
2
b
b
b
and
BESCF
Hunt
Hunt
Hunt
Hunt
7 i
7 i
1
7
6
6
6
6
6
6
6
6
6
6
6
6
Table 17 on page 83
0-RxITB
0-RxITB
1-RxITB
0-RxITB
0-RxITB
BESCL
Hunt
Hunt
Hunt
Hunt
7 c
7 c
7 c
7 c
4 c
4 c
4 c
4 c
4 c
7 c
7 c
7 c
7 c
7 c
2
7
BGETXT
0-RxITB
0-RxITB
1-RxITB
0-RxITB
0-RxITB
show the bisync state transitions, within bisync
Hunt
Hunt
Hunt
Hunt
Hunt
Hunt
2 c
2 c
3 c
3 c
4 c
4 c
4 c
4 c
4 c
3 c
3 c
3 c
3
3
BBCC
5 c
5 c
5 c
5 c
5 c
5 c
5 c
5 c
5 c
5 c
5 c
5 c
5 c
5 c
5 c
5 c
5 c
5 c
5 c
4
BBCC2
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
c
5
1
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
BWEOT
Hunt
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
Datasheet
BXP
Hunt
Hunt
7 c
7 c
7 c
7 c
7 c
7 c
7 c
7 c
7 c
7 c
7 c
7 c
7 c
7 c
7 c
7
2
2