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S3C2500B
31
[0] IOM2 Enable (IOM2EN)
0 = Disable
[1] Data Bus Reverse (DBREV)
0 = DU: upstream
1 = DU: downstream
[2] Monitor Enable (MEN)
0 = Disable
[3] TIC Bus Enable (TICEN)
0 = Disable
[4] D-channel Collision Enable (DCOLEN)
0 = Disable
[5] Monitor Abort Request (MAR)
0 = Normal
[6] Monitor Address Valid (MAV)
0 = Address received is not valid
1 = Address received is valid
[7] Monitor Transmit End Of Frame (MTxEOM)
0 = Normal
[8] Bus Request (BREQ)
0 = Normal
1 = Request TIC bus to send C/I0 data
[9] Monitor Channel Select (MSEL)
0 = Monitor 0 selected
[10] IC channel Select (ICSEL)
0 = IC 0 selected
[11] AWAKE (AWAKE)
0 = Normal
[12] LoopBack (LOOP)
0 = Normal
[13] TSA Enable (TSAEN)
0 = Disable
1 = Enable
[14] Transceiver Type Select (TTSEL)
0 = Transceiver that transmit DCL rising edge after FSC rising edge
1 = Transceiver that transmit DCL rising edge beforeFSC rising edge
Figure 9-7. IOM2 Control Register
15 14
13 12 11
10 9
A
I
M
T
T
L
W
C
T
S
O
A
S
S
A
O
K
E
E
E
P
E
L
L
N
1 = Enable
DD: downstream
DD: upstream
1 = Enable
1 = Enable
1 = Enable
1 = Abort request asserted
1 = Monitor sends end-of-frame
1 = Monitor 1 selected
1 = IC 1 selected
1 = Request the transceiver to deliver DCL
1 = Loopback mode
IOM2 CONTROLLER
8 7 6
5
4
3
2
B
M
M
M
D
T
M
S
R
T
A
A
C
I
E
E
E
x
V
R
O
C
N
L
Q
E
L
E
O
E
N
M
N
1
0
D
I
B
O
R
M
E
2
V
E
N
9-13
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