43 tx fifo write pointer (0x96)-tfwptr, 44 tx fifo last read frame (0x9a)-tflrfptr, 45 tx fifo last write frame ptr (0x9c)-tflwfptr – Freescale Semiconductor MPC5200B User Manual
Page 554: Tx fifo write pointer (0x96)—tfwptr -38, Tx fifo last read frame (0x9a)—tflrfptr -38, Tx fifo last write frame ptr (0x9c)—tflwfptr -38, Tx fifo write pointer (0x96) -38, Tx fifo last read frame ptr (0x9a) -38, Tx fifo last write frame ptr(0x9c) -38, Tx fifo write pointer (0x96)—tfwptr
PSC Registers—MBAR + 0x2000, 0x2200, 0x2400, 0x2600, 0x2800, 0x2C00
MPC5200B Users Guide, Rev. 1
Freescale Semiconductor
15-43
15.2.43
Tx FIFO Write Pointer (0x96)—TFWPTR
15.2.44
Tx FIFO Last Read Frame (0x9A)—TFLRFPTR
15.2.45
Tx FIFO Last Write Frame PTR (0x9C)—TFLWFPTR
Bit
Name
Description
0:3
—
Reserved
4:15
R_PTR
Read pointer.This FIFO-maintained pointer points to the next FIFO location to be read
Table 15-70. Tx FIFO Write Pointer (0x96)
msb 0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 lsb
R
Reserved
W_PTR
W
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
Name
Description
0:3
—
Reserved
4:15
W_PTR
Write pointer.This FIFO-maintained pointer points to the next FIFO location to be written to
Table 15-71. Tx FIFO Last Read Frame PTR (0x9A)
msb 0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 lsb
R
Reserved
LFP
W
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
Name
Description
0:3
—
Reserved
4:15
LFP
Last Frame Pointer. Not applicable to PSC FIFOs, since the PSCs do not recognize frame
formats in the serial data stream
Table 15-72. Tx FIFO Last Write Frame PTR(0x9C)
msb 0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 lsb
R
Reserved
LFP
W
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
Name
Description
0:3
—
Reserved
4:15
LFP
Last Frame Pointer. Not applicable to PSC FIFOs, since the PSCs do not recognize frame
formats in the serial data stream