NXP Semiconductors PN7462 series User Manual page 298

NXP Semiconductors
Bit
24:14
13:0
HOSTIF_BUFFER_RX3_CFG_REG
This register is used to configure the RX buffer 3.
Table 335. HOSTIF_BUFFER_RX3_CFG_REG (address offset 0x0044)
Bit
31:29
28
27:26
25
24:14
13:0
UM10858
User manual
COMPANY PUBLIC
Symbol
RX2_MAX_SIZE
[1][4][5]
RX2_START_ADDR
[1][5]
[1] Any change to this register, is only taken into account if the buffer is not in use
(RX<n>_BUFFER_LOCK = 0). However, the register itself is updated.
[3] The frame length of a short frame is defined in field SHORT_FRAME_LEN of
HOSTIF_CONTROL_REG
[4] Value must be greater than or equal to RX<n>_HEADER_OFFSET + + header + largest payload
expected (rounded up to the next word).
[5] Attempting to change this field when the buffer is in use (RX<n>_BUFFER_LOCK = 1) will generate a
System Error.
[6] Only values 0,1 or 2 are permitted
Symbol
RESERVED
RX3_BUFFER_DISAB
LE [1]
RX3_HEADER_OFFS
ET [1][5][6]
RX3_SHORT_FRAME
_BUFFER [1][3][5]
RX3_MAX_SIZE
[1][4][5]
RX3_START_ADDR
[1][5]
[1] Any change to this register, is only taken into account if the buffer is not in use
(RX3_BUFFER_LOCK = 0). However, the register itself is updated.
[3] The frame length of a short frame is defined in field SHORT_FRAME_LEN of
HOSTIF_CONTROL_REG
[4] Value must be greater than or equal to RX3_HEADER_OFFSET + + header + largest payload
expected (rounded up to the next word).
[5] Attempting to change this field when the buffer is in use (RX3_BUFFER_LOCK = 1) will generate a
System Error.
All information provided in this document is subject to legal disclaimers.
Rev. 1.4 — 14 May 2018
Access Reset Description
Value
R/W 0 Maximum size (bytes) of RX buffer 2
R/W 0 Word start address of RX buffer 2. Bits
[1:0] are unused.
Access Reset Description
Value
R 0 Reserved
R/W 0 1 - buffer is disabled
R/W 0x02 Number of padding bytes to add before
writing frame header to first word of RX
buffer 3.Not applicable to Native Mode.
R/W 0 1 - buffer assigned to short frames
0 - buffer assigned to non-short frames
Not applicable to Native Mode.
R/W 0 Maximum size (bytes) of RX buffer 3
R/W 0 Word start address of RX buffer 3. Bits
[1:0] are unused.
314514
UM10858
PN7462 family HW user manual
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