Datasheet

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PN532_C1 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2017. All rights reserved. Product data sheet COMPANY PUBLIC
Rev. 3.6 — 28 November 2017
115436 60 of 222
NXP Semiconductors
PN532/C1
Near Field Communication (NFC) controller
50h Read data byte has been
received; ACK has been
returned
Read data byte or 0 0 0 0 Data byte will be received;
NOT ACK bit will be returned
Read data byte 0 0 0 1 Data byte will be received;
ACK bit will be returned
58h Read data byte has been
received; NOT ACK has been
returned
Read data byte 1 0 0 X Repeated START condition will be transmitted
Read data byte 0 1 0 X STOP condition will be transmitted;
STO flag will be set to logic 0
Read data byte 1 1 0 X STOP condition followed by a START condition will be transmitted;
STO flag will be set to logic 0
Table 81. I
2
C Master Receiver Mode status codes …continued
Status
Code
ST[7:0]
Status of the I
2
C Bus and
the I
2
C interface Hardware
Application firmware Response Next Action Taken By the I
2
C interface Hardware
To /from I
2
CDAT TO I
2
CCON
STA STO SI AA
Table 82. I
2
C Slave Receiver Mode status codes
Status
Code
ST[7:0]
Status of the I
2
C Bus and
the I
2
C interface Hardware
Application firmware Response Next Action Taken By the I
2
C interface Hardware
To /from I
2
CDAT TO I
2
CCON
STA STO SI AA
60h Own SLA+W has been
received; ACK has been
returned
No I
2
CDAT action X 0 0 0 Data byte will be received an NOT ACK will be returned
No I
2
CDAT action X 0 0 1 Data bye will be received and ACK will be returned
68h Arbitration lost in SLA+R/W as
Master; Own SLA+W has been
received, ACK returned
No I
2
CDAT action X 0 0 0 Data byte will be received an NOT ACK will be returned
No I
2
CDAT action x 0 0 1 Data byte will be received and ACK will be returned
70h General call address (00h) has
been received; ACK has been
returned
No I
2
CDAT action X 0 0 0 Data byte will be received and NOT ACK will be returned
No I
2
CDAT action X 0 0 1 Data byte will be received and ACK will be returned
78h Arbitration lost in SLA+R/W as
Master; General call address
has been received, ACK has
been returned
No I
2
CDAT action X 0 0 0 Data byte will be received an NOT ACK will be returned
No I
2
CDAT action X 0 0 1 Data byte will be received and ACK will be returned
80h Previously addressed with own
SLA; Write data byte has been
received; ACK has been
returned
Read data byte X 0 0 0 Data byte will be received an NOT ACK will be returned
Read data byte X 0 0 1 Data byte will be received and ACK will be returned