SLWS132 Datasheet, PDF (41/46 Pages) Texas Instruments – QUAD RECEIVER CHIP

GC4014 QUAD RECEIVER CHIP
7.7 DIAGNOSTICS
DATA SHEET REV 0.6
Four diagnostic tests are described here. These tests use the diagnostic ramp as the input data source and
the counter for synchronization. The tests are run by loading the configurations, waiting for the checksum to
stabilize, and then reading the checksum from address 15 and comparing it to the expected checksum shown in
each configuration table for address 15.
Table 13: Diagnostic Test 1 Configuration
Control Registers
Channel pages 4,5,6,7
Address
Data
Address Page 4 Page 5
00 (HEX)
2A (HEX) 10 (HEX) 12 (HEX)
01
80
11
23
02
07
12
34
03
00
13
01
04
72
14
55
05
00
15
55
06
00
16
FF
07
00
17
04
08
51
18
AA
09
AA
19
0A
FF
1A
0B
0F
1B
0C
88
1C
0D
0P²
1D
0E
00
1E
0F
85¹
1F
1. This is the read-only expected checksum
2. P = desired page number
45 (HEX)
23
34
02
55
55
AA
04
AA
Page 6
AA (HEX)
55
AA
00
55
55
55
04
AA
Page 7
55 (HEX)
AA
55
03
55
55
80
04
AA
Page 8
Unused
Coefficient Pages
Page 9 Page 10
Page 11
Table 14: Diagnostic Test 2 Configuration
Control Registers
Channel pages 4,5,6,7
Address
Data
Address Page 4 Page 5
00 (HEX)
2A (HEX) 10 (HEX) 55 (HEX)
01
80
11
AA
02
0F
12
55
03
00
13
03
04
64
14
AA
05
00
15
AA
06
01
16
AA
07
00
17
04
08
51
18
AA
09
AA
19
0A
FF
1A
0B
0F
1B
0C
88
1C
0D
0P
1D
0E
00
1E
0F
80¹
1F
1. This is the read-only expected checksum
12 (HEX)
23
34
00
AA
AA
55
04
AA
Page 6
45 (HEX)
23
34
01
AA
AA
7F
04
AA
Page 7
AA (HEX)
55
AA
02
AA
AA
FF
04
AA
Page 8
Unused
Coefficient Pages
Page 9 Page 10
Page 11
GRAYCHIP, INC.
- 36 -
APRIL 27, 1999
This document contains information which may be changed at any time without notice