Programming Model
MOTOROLA
Multimedia Accelerator (MMA)
17-15
17.3.2 MMA MAC XY Count Accumulate Register
17.3.3 MMA MAC X Register Control Registers
There are 6 registers that reside in the X operand Data Access Controller (XDAC). The XDAC has an
associated cache. The initial access by the XDAC is a cache miss, so the operand is fetched from memory
and stored in the cache. Subsequent accesses to the same location cause cache hits, so the data is loaded
from the cache instead of from memory.
Table 17-11. MMA MAC Bit Select Register Description
Name
Description
Settings
Reserved
Bits 31–3
Reserved—These bits are reserved and should read 0.
BITSEL
Bits 2–0
Accumulator Output Bit Select
—Selects which 32–bit subset of the
56–bit accumulator is stored in the FIFO.
000 = bits 31:0
001 = bits 35:4
010 = bits 39:8
011 = bits 43:12
100 = bits 47:16
101 = bits 51:20
110 = bits 55:24
MMA_MAC_XYACCU
MMA MAC XY Count Accumulate
Register
Addr
0x00222040
BIT
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
MMA_MAC_XY_COUNT
TYPE
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
BIT
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
MMA_MAC_XY_COUNT
TYPE
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
w
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
Содержание DragonBall MC9328MX1
Страница 68: ...1 12 MC9328MX1 Reference Manual MOTOROLA Introduction ...
Страница 86: ...2 18 MC9328MX1 Reference Manual MOTOROLA Signal Descriptions and Pin Assignments ...
Страница 116: ...3 30 MC9328MX1 Reference Manual MOTOROLA Memory Map ...
Страница 126: ...4 10 MC9328MX1 Reference Manual MOTOROLA ARM920T Processor ...
Страница 160: ...8 8 MC9328MX1 Reference Manual MOTOROLA System Control ...
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Страница 478: ...19 40 MC9328MX1 Reference Manual MOTOROLA LCD Controller ...
Страница 542: ...20 64 MC9328MX1 Reference Manual MOTOROLA Multimedia Card Secure Digital Host Controller Module MMC SD ...
Страница 574: ...21 32 MC9328MX1 Reference Manual MOTOROLA Memory Stick Host Controller MSHC Module ...
Страница 598: ...23 16 MC9328MX1 Reference Manual MOTOROLA Real Time Clock RTC ...
Страница 670: ...24 72 MC9328MX1 Reference Manual MOTOROLA SDRAM Memory Controller ...
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Страница 736: ...26 10 MC9328MX1 Reference Manual MOTOROLA General Purpose Timers ...
Страница 854: ...29 18 MC9328MX1 Reference Manual MOTOROLA I2C Module ...
Страница 900: ...30 46 MC9328MX1 Reference Manual MOTOROLA Synchronous Serial Interface SSI ...
Страница 942: ...32 26 MC9328MX1 Reference Manual MOTOROLA GPIO Module and I O Multiplexer IOMUX ...