Datasheet

Table Of Contents
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 56 of 222
NXP Semiconductors
PN532/C1
Near Field Communication (NFC) controller
1 to 0 CR[1:0] Serial clock frequency selection in Master mode.
CR2 CR1 CR0 CPU_CLK division factor I2C bit frequency
0 0 0 10 CPU_CLK/10
0 0 1 20 CPU_CLK/20
0 1 0 30 CPU_CLK/30
0 1 1 40 CPU_CLK/40
1 0 0 80 CPU_CLK/80
1 0 1 120 CPU_CLK/120
1 1 0 160 CPU_CLK/160
1 1 1 (256-T1 reload value)*12
24...3072
CPU_CLK/3072...CPU_CLK/24
Table 77. Description of I
2
CCON bits …continued
Bit Symbol Description