Preliminary Data Sheet
INDT/R166B
INDT/R331B
Date: 2005-03-14 Revision: 0.1
Page 9 of 40
Signals (D+Clk)
Interface
INDT
INDR
Speed
Direction
Width
[bit]
Bandwidth
[Mbps]
Asynchro-
nous
Synchro-
nous
Samp-
ling
SB0
4+1
4+1
Low speed
Upstream
4
4.125
–X
–
SB2
4+1
4+1
Low speed
Downstream
4
4.26
–X
–
SB1
2+1
2+2
High speed
Upstream
2
111.375
XX
–
SB3
2+2
2+1
High speed
Downstream
2
132
XX
X
SB4
2
2+2
2+1
High speed
Downstream
2
132
XX
X
Table 1.6: Transfer Capabilities Sideband Data Interface Signals
1.3.2 Low-speed Upstream Sideband Data Channel (SB0)
The low-speed upstream sideband data channel consists of one 4 Mbps data channel with a 4-bit parallel interface (or 4
individual 1 Mbps data channels, each consisting of a 1-bit serial interface) and one synchronous clock output (SB0_CLK).
1.3.3 High-speed Upstream Sideband Data Channel (SB1)
The high-speed upstream sideband data channel has a 2-bit wide data interface. Different operating modes can be
selected. The maximum bandwidth is 111 Mbps. This can be used for any generic data link e.g. a low-resolution graphics
channel or a CMOS image sensor.
In asynchronous clocking mode an external clock can be applied into SB1_CLKI of the INDR. The range of the external
acceptable clock frequency is 0 – 55 MHz. In synchronous mode data are read into the INDR using the synchronous clock
frequency of 55 MHz being output at SB1_CLKO. In both cases the transferred data are available at the INDT with a fixed
clock of 55 MHz.
1.3.4 Low-speed Downstream Sideband Data Channel (SB2)
The low-speed downstream sideband data channel consists of one 4 Mbps data channel with a 4-bit parallel interface (or 4
individual 1 Mbps data channels, each consisting of a 1-bit serial interface) and one synchronous clock output (SB2_CLK).
1.3.5 High-speed Downstream Sideband Data Channel (SB3, SB42).
The INDT/R166B (INDT/R331B) features one (two) high-speed downstream sideband data channels, each with a 2-bit
wide data interface. Different operating modes can be selected. The maximum bandwidth is 132 Mbps (2 x 132 Mbps).
In asynchronous clocking mode an external clock can be feed into SB3_CLKI (and SB4_CLKI
2) of the INDT. The range of
the external acceptable clock frequency is 0 – 66 MHz. In synchronous mode data are read into the INDT using the
synchronous clock frequency of 66 MHz being output at SB3_CLKO (and SB4_CLKO
2). In both cases the transferred data
are available at the INDR with a fixed clock of 66 MHz. In sampling mode, the sideband data are sampled with an internal
sampling clock at 66 MHz.
2 Sideband Data Channel 4 (SB4) only available with INDT/R330B
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