Freescale Semiconductor MPC5200B ユーザーズマニュアル
MPC5200B Users Guide, Rev. 1
9-28
Freescale Semiconductor
Programmer’s Model
9.7.3
SCLPC FIFO Registers—MBAR + 0x3C40
LPC uses a single FIFO that changes direction based on the Rx/Tx mode. Software controls direction change and flushes FIFO before
changing directions. FIFO memory is 512Bytes (32 x 128).
changing directions. FIFO memory is 512Bytes (32 x 128).
LPC FIFO is controlled by six 32-bit registers. These registers are located at an offset from MBAR of 0x3C40. Register addresses are relative
to this offset. Therefore, the actual register address is:
to this offset. Therefore, the actual register address is:
MBAR + 0x3C40 + register address
Hyperlinks to the LPC FIFO registers are provided below:
9.7.3.1
LPC Rx/Tx FIFO Data Word Register—MBAR + 0x3C40
LPC_rx/tx_fifo_data_word_register
LPC_rx/tx_fifo_data_word_register
Note: X: Bit does not reset to a defined value.
•
(0x3C40)
•
(0x3C4C)
•
(0x3C44)
•
(0x3C50)
•
(0x3C48)
•
(0x3C54)
Table 9-18. LPC Rx/Tx FIFO Data Word Register
msb 0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
FIFO_Data_Word
W
RESET:
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31 lsb
R
FIFO_Data_Word
W
RESET:
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X