Cirrus Logic CS5378 - Manual (Page 82)

CS5378
DS639F3 82
20.2.11 SELFTEST : 0x2F
(MSB) 23 22 21 20 19 18 17 16
-- -- -- -- EU3 EU2 EU1 EU0
R/W R/W R/W R/W R/W R/W R/W R/W
0 0 0 0 1 0 1 0
15 14 13 12 11 10 9 8
DRAM3 DRAM2 DRAM1 DRAM0 PRAM3 PRAM2 PRAM1 PRAM0
R/W R/W R/W R/W R/W R/W R/W R/W
1 0 1 0 1 0 1 0
7 6 5 4 3 2 1 (LSB) 0
DROM3 DROM2 DROM1 DROM0 PROM3 PROM2 PROM1 PROM0
R/W R/W R/W R/W R/W R/W R/W R/W
1 0 1 0 1 0 1 0
DF Address: 0x2F
-- Not defined;
read as 0
R Readable
W Writable
R/W Readable and
Writable
Bits in bottom rows
are reset condition
Figure 53. Self Test Result Register SELFTEST
Bit definitions:
23:20 -- reserved 15:12 DRAM
[3:0]
Data RAM Test
‘A’: Pass
‘F’: Fail 7:4 DROM
[3:0] Data ROM Test
‘A’: Pass
‘F’: Fail
19:16 EU
[3:0]
Execution Unit Test
‘A’: Pass
‘F’: Fail 11:8 PRAM
[3:0] Program RAM Test
‘A’: Pass
‘F’: Fail 3:0 PROM
[3:0] Program ROM Test
‘A’: Pass
‘F’: Fail