MFRC52301HN1,157 NXP Semiconductors, MFRC52301HN1,157 Datasheet - Page 10

• Manufacturer Part Number: MFRC52301HN1,157
• Description: IC READER 13.56MHZ 32-HVQFN
• Manufacturer: NXP Semiconductors

Specifications of MFRC52301HN1,157

• Frequency: 13.56MHz
• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Rf Type: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935282956157

NXP Semiconductors
MFRC523_34
Product data sheet
PUBLIC
8.3.2.1 SPI read data
8.3.2 Serial Peripheral Interface
Table 5.
The 5-wire Serial Peripheral Interface (SPI) is supported and enables high-speed
communication with the host. The interface can manage data speeds up to 10 Mbit/s.
When communicating with a host, the MFRC523 acts as a slave. As such, it receives data
from the external host for register settings, sends and receives data relevant for RF
interface communication.
An interface compatible with SPI enables high-speed serial communication between the
MFRC523 and a microcontroller. The implemented interface meets with the SPI standard.
The timing specification is given in
The MFRC523 acts as a slave during SPI communication and is timed using the SPI clock
signal (SCK) generated by the master. Data communication from the master to the slave
uses the MOSI line. The MISO line is used to send data from the MFRC523 to the master.
Data bytes on both MOSI and MISO lines are sent with the MSB first. Data on both MOSI
and MISO lines must be stable on the rising edge of the clock and can be changed on the
falling edge. Data is sent by the MFRC523 on the falling clock edge and is stable during
the rising clock edge.
Reading data using SPI requires the byte order shown in
to read out up to n-data bytes.
Pin
SDA
I2C
EA
D7
D6
D5
D4
D3
D2
D1
Fig 7.
SPI connection to host
Connection protocol for detecting different interface types
All information provided in this document is subject to legal disclaimers.
Rev. 3.5 — 24 September 2010
Interface type
UART (input)
RX
0
0
TX
MX
DTRQ
-
-
-
-
115235
SCK
MOSI
MISO
NSS
Section 14.1 on page
SPI (output)
NSS
0
1
MISO
MOSI
SCK
-
-
-
-
SCK
MOSI
MISO
NSS
MFRC523
001aal159
Table 6
75.
to be used. It is possible
Contactless reader IC
I
SDA
1
EA
SCL
ADR_0
ADR_1
ADR_2
ADR_3
ADR_4
ADR_5
2
MFRC523
C-bus (I/O)
© NXP B.V. 2010. All rights reserved.
10 of 97