Advanced Technology Attachment Controller (ATA)
MCF5253 Reference Manual, Rev. 1
Freescale Semiconductor
23-27
The FiFO_DATA Register is used to read or write data to the internal FIFO. It can be accessed as a 16-bit
register or as a 32-bit register. Any long write to the register will put the four bytes written into the FIFO.
Any word write will put the two bytes written into the FIFO. Any long read will read four bytes from the
FIFO. Any word read will read two bytes from the FIFO.
23.5.2.3.3
FIFO_FILL Register
for illustration of valid bits in the FIFO_FILL Register and
for description of
the bit fields.
FIFO_FILL is a read-only register. Any read to it returns the current number of halfwords present in the
FIFO.
23.5.2.4
ATA_CONTROL Register
for illustration of valid bits in the ATA Control Register and
for description
of the bit fields.
Address MBAR2 + 0x818 (FIFO_DATA_32)
Access: User read/write
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
R
FIFO_DATA[32:16]
W
Reset
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
R
FIFO_DATA[15:0]
W
Reset
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Figure 23-37. FIFO_Data Register in 32-Bit Mode
Address MBAR2 + 0x820 (FIFO_FILL)
Access: User read-only
7
6
5
4
3
2
1
0
R
FIFO_FILL[7:0]
W
Reset
0
0
0
0
0
0
0
0
Figure 23-38. FIFO_FILL Register
Summary of Contents for MCF5253
Page 1: ...Document Number MCF5253RM Rev 1 08 2008 MCF5253 Reference Manual...
Page 26: ...MCF5253 Reference Manual Rev 1 xxvi Freescale Semiconductor...
Page 32: ...MCF5253 Reference Manual Rev 1 xxxii Freescale Semiconductor...
Page 46: ...MCF5253 Introduction MCF5253 Reference Manual Rev 1 1 14 Freescale Semiconductor...
Page 62: ...Signal Description MCF5253 Reference Manual Rev 1 2 16 Freescale Semiconductor...
Page 98: ...Instruction Cache MCF5253 Reference Manual Rev 1 5 10 Freescale Semiconductor...
Page 104: ...Static RAM SRAM MCF5253 Reference Manual Rev 1 6 6 Freescale Semiconductor...
Page 128: ...Synchronous DRAM Controller Module MCF5253 Reference Manual Rev 1 7 24 Freescale Semiconductor...
Page 144: ...Bus Operation MCF5253 Reference Manual Rev 1 8 16 Freescale Semiconductor...
Page 176: ...System Integration Module SIM MCF5253 Reference Manual Rev 1 9 32 Freescale Semiconductor...
Page 198: ...Analog to Digital Converter ADC MCF5253 Reference Manual Rev 1 12 6 Freescale Semiconductor...
Page 246: ...DMA Controller MCF5253 Reference Manual Rev 1 14 18 Freescale Semiconductor...
Page 282: ...UART Modules MCF5253 Reference Manual Rev 1 15 36 Freescale Semiconductor...
Page 344: ...Audio Interface Module AIM MCF5253 Reference Manual Rev 1 17 46 Freescale Semiconductor...
Page 362: ...I2 C Modules MCF5253 Reference Manual Rev 1 18 18 Freescale Semiconductor...
Page 370: ...Boot ROM MCF5253 Reference Manual Rev 1 19 8 Freescale Semiconductor...
