NXP Semiconductors
UM10858
PN7462 family HW user manual
UM10858
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© NXP B.V. 2018. All rights reserved.
User manual
COMPANY PUBLIC
Rev. 1.4 — 14 May 2018
314514
299 of 345
[6] Only values 0,1 or 2 are permitted
HOSTIF_BUFFER_TX_CFG_REG
This register is used to configure the TX buffer
Table 336. HOSTIF_BUFFER_TX_CFG_REG (address offset 0x0048)
Bit
Symbol
Access Reset
Value
Description
31:17
RESERVED
R
0
Reserved
16
TX_EMPTY_PAYLOA
D_ENABLE
R/W
0
1 - send empty payload packets (header
and CRC only).
Not applicable to Native Mode.
15:14
R/W
0x02
Number of bytes to skip in first word of
buffer before sending to Host.
Not applicable to Native Mode.
13:0
TX_START_ADDR
R/W
0
Word start address of TX buffer. Bits [1:0]
are unused.
[1] Any change to this register, is only taken into account if the buffer is not in use (TX_BUFFER_LOCK = 0).
However, the register itself is updated.
[2] Only values 0,1 or 2 are permitted
HOST
I
F_BUFFER_RX0_LEN_REG
This register is used to indicate the number of bytes stored in RX buffer 0
HOSTIF_BUFFER_RX0_LEN_REG (address offset 0x004C)
Bit
Symbol
Access Reset
Value
Description
31:13
RESERVED
R
0
Reserved
12
RX0_PEC_OK
R
0
1 - Last byte received matched computed
PEC. Only valid if RX0_PEC_RECEIVED
is 1
11
RX0_PEC_RECEIVED R
0
1 - Last received was a PEC. 0- hardware
could not detected if last received byte
was a PEC, payload analysis required.
10:0
RX0_LENGTH
R
0
Number of bytes received in buffer RX0
(active when
HOSTIF_CONTROL_REG.NCI_LENGTH_M
ODE=1)