Registers - NXP Semiconductors PN7462 series User Manual

NXP Semiconductors
The default PN7462 family FW embeds a SW controlling a TDA8026.
But it is also possible to connect other external contact interface, such as TDA8035. The
difference is the number of slots (TDA8035 controls only 1 slot), and the host interface:
on TDA8035, the host interface doesn't use I2C, but it uses a set of GPIOs. It is possible
to control this TDA8035 by changing the connection between the PN7462 family and the
TDA8035, and by updating the FW to control the TDA8035 through GPIOs, instead of the
TDA8026 through I2C.
Here the SW modifications only apply to the TDA control part: configuration, and card
activation/deactivation. The whole communication protocol remains unchanged, through
IO_AUX and CLK_AUX.

13.6 Registers

13.6.1 Register overview
Table 247. Contact interface – Register overview (base address 0x4001 4000)
Name Address
offset
ct_ssr_reg 0000h
ct_pdr1_lsb_reg 0004h
ct_pdr2_lsb_reg 0004h
ct_pdr1_msb_reg 0008h
ct_pdr2_msb_reg 0008h
ct_fcr_reg 000Ch
UM10858
User manual
COMPANY PUBLIC
(1) This figure only shows the link between PN7462 family and TDA8026, but is not an application
schematic. External components are not showed here.
Fig 39. External TDA8026 connection
Width Access
(bits)
5 R/W
8 R/W
8 R/W
8 R/W
8 R/W
8 R/W
All information provided in this document is subject to legal disclaimers.
Rev. 1.4 — 14 May 2018
Reset Description
Value
00000001h Slot Select Register
00000074h Programmable Divider Register (LSB) slot 1
00000074h Programmable Divider Register (LSB) slot 2
00000001h Programmable Divider Register (MSB) slot 1
00000001h Programmable Divider Register (MSB) slot 2
00000001h FIFO Control Register
314514
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PN7462 family HW user manual
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