Programming Model
MOTOROLA
Multimedia Accelerator (MMA)
17-21
17.3.4.3 MMA MAC Y Length Register
YINDEX
Bits 15–0
Y Index
—Determines part of the offset from the base address.
The Y Address Index (actual access address) is equal to MMA_MAC
MMA_MAC_ [MMA_MAC_YMODIFYr
×
the number of iterations since initialization, the
index last wrapped, or the last MMA_MAC_YCOUNT iterations (if the Y INDEX LOAD bit is set)].
MMA_MAC_YLENGTH
MMA MAC Y Length Register
Addr
0x00222308
BIT
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
COLUMN
TYPE
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
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
LENGTH
TYPE
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
Table 17-20. MMA MAC Y Length Register Description
Name
Description
COLUMN
Bits 31–16
Column Size
—MMA_MAC_YINDEX wraps around to the base of the buffer when
MMA_MAC_ MMA_MAC_YINCR is greater than COLUMN. Writing 0 to this register will
disable the wrapping of address.
Note:
Note: If the current MMA_MAC_YINDEX is 12 and the COLUMN is 16, MMA_MAC_YINCR
is 8, then the next YINDEX will be (12+8)% 16 == 4. The physical address is 4 +
MMA_MAC_YBASE.
LENGTH
Bits 15–0
Circular Length
—Circular Length - Determines the size of the Y data buffer. Address_Index wraps
back to base of buffer when Address MMA_MAC_YMODIFY is greater than LENGTH.
Writing 0 to this register will disable the wrapping of address.
Note:
Note: If the current Address_Index is 12 and the LENGTH is 16, MMA_MAC_YMODIFY is 8,
then the next Address_Index will be (12+8)% 16 == 4. The physical address is 4 +
MMA_MAC_YBASE.
Table 17-19. MMA MAC Y Index Register Description (Continued)
Name
Description
Summary of Contents for DragonBall MC9328MX1
Page 68: ...1 12 MC9328MX1 Reference Manual MOTOROLA Introduction ...
Page 86: ...2 18 MC9328MX1 Reference Manual MOTOROLA Signal Descriptions and Pin Assignments ...
Page 116: ...3 30 MC9328MX1 Reference Manual MOTOROLA Memory Map ...
Page 126: ...4 10 MC9328MX1 Reference Manual MOTOROLA ARM920T Processor ...
Page 160: ...8 8 MC9328MX1 Reference Manual MOTOROLA System Control ...
Page 272: ...13 32 MC9328MX1 Reference Manual MOTOROLA DMA Controller ...
Page 281: ...Programming Model MOTOROLA Watchdog Timer Module 14 9 ...
Page 282: ...14 10 MC9328MX1 Reference Manual MOTOROLA Watchdog Timer Module ...
Page 300: ...15 18 MC9328MX1 Reference Manual MOTOROLA Analog Signal Processor ASP ...
Page 438: ...18 16 MC9328MX1 Reference Manual MOTOROLA Serial Peripheral Interface Modules SPI 1 and SPI 2 ...
Page 478: ...19 40 MC9328MX1 Reference Manual MOTOROLA LCD Controller ...
Page 574: ...21 32 MC9328MX1 Reference Manual MOTOROLA Memory Stick Host Controller MSHC Module ...
Page 598: ...23 16 MC9328MX1 Reference Manual MOTOROLA Real Time Clock RTC ...
Page 670: ...24 72 MC9328MX1 Reference Manual MOTOROLA SDRAM Memory Controller ...
Page 726: ...25 56 MC9328MX1 Reference Manual MOTOROLA SmartCard Interface Module SIM ...
Page 736: ...26 10 MC9328MX1 Reference Manual MOTOROLA General Purpose Timers ...
Page 854: ...29 18 MC9328MX1 Reference Manual MOTOROLA I2C Module ...
Page 900: ...30 46 MC9328MX1 Reference Manual MOTOROLA Synchronous Serial Interface SSI ...
Page 942: ...32 26 MC9328MX1 Reference Manual MOTOROLA GPIO Module and I O Multiplexer IOMUX ...