LH543621P-35 查看數據表（PDF） - Sharp Electronics
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LH543621P-35 Datasheet PDF : 57 Pages
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512 x 36 x 2/1024 x 36 x 2 BiFIFOs
LH543611/21
Output word:
Odd parity:
Even parity:
PARITY CHECKING
DA/B35
DA/B0
100111100 000111100 100111000 000111000
Parity of Bytes = 0110; (1 = Byte Parity Error) PF = L
Parity of Bytes = 1001; (1 = Byte Parity Error) PF = L
Input word:
Output, odd parity:
Output, even parity:
PARITY GENERATION
DA/B35
100111100 000111100 100111000
100111100 100111100 000111000
000111100 000111100 100111000
DA/B0
000111000
000111000
100111000
Figure 6. Example of Parity Checking and Generation
DA[35:0]
0 B3 B2 B1 B0
0
1 B7 B6 B5 B4
1
2
3
4
* NOTE: B0, B1, . . ., represent data bytes.
Table 2b. Bus Funneling/Defunneling *
WS = 3 (HH)
DB[35:0]
B3 B2 B1 B0
B7 B6 B5 B4
WS = 2 (HL)
DB[35:0]
B0 B1 B2 B3
B4 B5 B6 B7
WS = 1 (LH)
DB[35:18] DB[17:0]
B3 B2 B1 B0
B1 B0 B3 B2
B7 B6 B5 B4
B5 B4 B7 B6
WS = 0 (LL)
DB[35:9] DB[8:0]
B3 B2 B1 B0
B0 B3 B2 B1
B1 B0 B3 B2
B2 B1 B0 B3
B7 B6 B5 B4
INPUT
B3
B7
BYTE #4 BYTE #8
B2
B6
BYTE #3 BYTE #7
B1
B5
BYTE #2 BYTE #6
B0
B4
BYTE #1 BYTE #5
LH543611/21
DA35
DA27
DA26
DA18
DA17
DA9
DA8
DA0
DB35
DB27
DB26
DB18
DB17
DB9
DB8
DB0
OUTPUT: WS[1:0]= 2 (HL)
B0
B4
BYTE #1 BYTE #5
B1
B5
BYTE #2 BYTE #6
B2
B6
BYTE #3 BYTE #7
B3
B7
BYTE #4 BYTE #8
0
1
2
0
1
2
3
CKA
CKB
Figure 7. Example of 36-to-36 Byte Order Reversal
543611-52
15
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