RF430CL331HIPWR datasheet(44/60 Pages) TI1

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RF430CL331H

SLASE18A – SEPTEMBER 2015 – REVISED NOVEMBER 2015

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5.11.8 Host Response Register

This register is used, after an interrupt is asserted by the RF430CL331H. It communicates various

responses from the host controller. The actual interrupt flag clearing must happen immediately before

setting the response in this register.

Table 5-31. Host Response Register

ADDRESS

0xFFEB

Reserved

ADDRESS

Use Custom

Extra Data

Interrupt

0xFFEA

Reserved

File Exists

Sent In

Serviced

Response

Table 5-32. Host Response Register Description

BIT

FIELD

TYPE

RESET

DESCRIPTION

15-4

Reserved

R/W

Reserved for future use. Write with 0.

This may only be set if the Read Prefetch interrupt has been asserted. This is

possible only after a Read Binary command. This indicates to the

RF430CL331H that extra data has been written to the buffer during RF data

transmission to a previous Read Binary command. To enable this feature, the

Extra Data Sent In

R/W

Extra Data Interrupt Enable must be set. This also called Prefetch on Read.

0b = No extra data has been written.

1b = Extra data has been written. Update buffer size.

This sets whether or not a custom SW (status word) should be responded to a

NFC Type 4 command (Select, Read Binary, Update Binary).

Use Custom SW Response

R/W

0b = Default response to the PCD.

1b = Custom response to the PCD. The actual SW response is taken from the

Custom SW Response Register.

This is the response to the interrupt of General Type 4 Request with status of

file select.

File Exists

R/W

0b = File named in the NDEF File Identifier Register does not exist.

1b = File named in the NDEF File Identifier Register does exist.

Setting this bit high after an interrupt (this applies only to General Type 4

Requests IRQ) has been asserted by the RF430CL331H indicates that the

interrupt has been completely serviced. The actual interrupt flag clearing must

happen immediately before setting this register.

Interrupt Serviced

R/W

0b = The interrupt is in the process of being serviced by the host controller

1b = The interrupt has been serviced, RF430CL331H to start processing the

response

Detailed Description

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