MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 389

• Manufacturer Part Number: MOD5234-100IR
• Description: MOD5234 10/100 ETHERNET MODULE
• Manufacturer: NetBurner Inc
• Type: Controllers & Processorsr

Specifications of MOD5234-100IR

• Interface: I²C, SPI, UART
• Voltage - Supply: 2.5V
• Mounting Type: Surface Mount
• Package / Case: Module
• Product: Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Format: -
• Baud Rates: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q4483564

19.2.4.19 FIFO Receive Bound Register (FRBR)
The FRBR is an 8-bit register that the user can read to determine the upper address bound of the
FIFO RAM. Drivers can use this value, along with the FRSR to appropriately divide the available
FIFO RAM between the transmit and receive data paths.
Freescale Semiconductor
Address
Address
Reset
Reset
Reset
Reset
31–2
Bits
1–0
W
W
W
W
R
R
R
R
31
15
31
15
0
0
0
0
0
0
0
0
Figure 19-19. FIFO Transmit FIFO Watermark Register (TFWR)
TFWR
Name
30
14
30
14
0
0
0
0
0
0
0
0
—
Figure 19-20. FIFO Receive Bound Register (FRBR)
29
13
29
13
0
0
0
0
0
0
0
0
Reserved, should be cleared.
Number of bytes written to transmit FIFO before transmission of a frame begins
0x 64 bytes written
10 128 bytes written
11 192 bytes written
28
12
Table 19-22. TFWR Field Descriptions
28
12
0
0
0
0
0
0
0
0
27
27
11
11
0
0
0
0
0
0
0
0
MCF5235 Reference Manual, Rev. 2
26
10
26
10
0
0
0
0
0
0
0
1
25
25
0
0
0
0
0
0
1
9
9
IPSBAR + 0x114C
IPSBAR + 0x1144
24
24
0
0
0
0
0
0
0
8
8
Descriptions
23
23
0
0
0
0
0
0
0
7
7
R_BOUND
22
22
0
0
6
0
0
0
0
6
0
21
21
0
0
0
0
0
0
0
5
5
20
20
0
0
0
0
0
0
0
4
4
Memory Map/Register Definition
19
19
0
0
0
0
0
0
0
3
3
18
18
0
0
0
0
0
0
0
2
2
17
17
0
0
0
0
0
0
0
1
1
TFWR
16
16
0
0
0
0
0
0
0
0
0
19-25