DMA2275 MICRONAS [Micronas], DMA2275 Datasheet - Page 15

• Manufacturer Part Number: DMA2275
• Description: DMA 2275, DMA 2286 C/D/D2-MAC Descrambler
• Manufacturer: MICRONAS [Micronas]

Table 8–2: IM Bus register of DMA 2275/2286
Address
5
6
7
8
9
10
Label
EXA
WRA
RDA
DAT
WRQ
RRQ
BUS
EXD
TT0
TT1
TT2
TT3
TT4
TT5
TT6
TT7
TT8
TT9
TT10
TT11
TT12
TT13
TT14
TT15
Bit No.
0–11
0–11
0–11
0–7
0
1
2
3–6
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Function
extension address
write address
bit 10: test option 2
1 = write (EXA) into fp_ram, address = (WRA)
read address
bit 10: test option 2
1 = read fp_ram into DAT and EXA, address = (RDA)
bit 11: test option 1
1 = causes fp_jump to (EXA)
data (from dram or fp_ram)
write request
read request
imbus busy
1 = imbus interface busy
extension data
4 msb of fp_data, but in reverse order
for test only
bypass line memory
for test only
for test only
for test only
for test only
gray decoder input 0 = 7 bit
for test only
for test only
for test only
for test only
for test only
for test only
for test only
for test only
for test only
1 = 8 bit
DMA 2275, DMA 2286
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