HI2303 데이터 시트보기 (PDF) - Intersil
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HI2303 Datasheet PDF : 18 Pages
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HI2303
Mode #6, #7 - Simple Boundary Scan 1 and Scan 2
The HI2303 has a simple boundary scan function.
TABLE 3. SIMPLE BOUNDARY SCAN
BITS
A7
B7
C7
A6
B6
C6
A5
B5
C5
A4
B4
C4
A3
B3
C3
A2
B2
C2
A1
B1
C1
A0
B0
C0
NOTE: CLK and SY must be set.
Clamp Function
The following two points should be noted when using the
digital clamp circuit.
- The clamp pulse must be supplied externally.
- The clamp circuit is not designed for V cycle clamping.
OUTPUT DATA
MODE #6 MODE #7
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
16 different reference levels can be selected for the digital
clamp circuit through a combination of the REF0, REF1,
REF2 and REF3 inputs as shown in the table below. Note
that the REF0, REF1, REF2 and REF3 input signals are
fetched asynchronously with the clock input signal.
AIN(pedestal) = VRB + (Binary Code * LSB) + EOB
REF3
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
SETTING
REF2
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
REF1
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
TABLE 4. SETTING VALUES AND REFERENCE LEVEL
REFERENCE LEVEL
CHANNEL A
CHANNELS B AND C
REF0
MODE DECIMAL
BINARY
DECIMAL
BINARY
L
0
16
00010000
128
10000000
H
1
32
00100000
128
10000000
L
2
48
00110000
128
10000000
H
3
64
01000000
128
10000000
L
4
1
00000001
1
00000001
H
5
16
00010000
16
00010000
L
6
32
00100000
32
00100000
H
7
48
00110000
48
00110000
L
8
239
11101111
127
01111111
H
9
223
11011111
127
01111111
L
A
207
11001111
127
01111111
H
B
191
10111111
127
01111111
L
C
254
11111110
254
11111110
H
D
239
11101111
239
11101111
L
E
223
11011111
223
11011111
H
F
207
11001111
207
11001111
17
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