tda8029hl-c207 NXP Semiconductors, tda8029hl-c207 Datasheet - Page 6

• Manufacturer Part Number: tda8029hl-c207
• Description: Low Power Single Card Reader
• Manufacturer: NXP Semiconductors

Philips Semiconductors
8. Functional description
9397 750 14145
Product data sheet
8.1 Microcontroller
Table 3:
Throughout this specification, it is assumed that the reader is aware of ISO7816 norm
terminology.
The embedded microcontroller is an 80C51FB with internal 16 kB ROM, 256 byte RAM
and 512 byte XRAM. It has the same instruction set as the 80C51.
The controller is clocked by the frequency present on XTAL1.
The controller may be reset by an active HIGH signal on pin RESET, but it is also reset by
the power-on reset signal generated by the voltage supervisor.
Symbol
SAP
SBP
DCIN
SBM
PGND
SAM
TEST
EA_N
ALE
PSEN_N
P27
P26
XTAL1
XTAL2
RESET
P32/INT0_N
P33/INT1_N
P31/TX
P30/RX
Pin description
Pin
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Rev. 03 — 22 February 2005
Type
I/O
I/O
I
I/O
power
I/O
I
I
O
O
I/O
I/O
I
O
I
O
I/O
O
I
…continued
Description
DC-to-DC converter capacitor connection (low ESR 220 nF
between SAP and SAM)
DC-to-DC converter capacitor connection (low ESR 220 nF
between SBP and SBM)
power input for the DC-to-DC converter
DC-to-DC converter capacitor connection (low ESR 220 nF
between SBP and SBM)
ground for the DC-to-DC converter
DC-to-DC converter capacitor connection (low ESR 220 nF
between SAP and SAM)
used for test purpose; connect to GND in the application
control signal for microcontroller; connect to V
application)
control signal for the microcontroller; leave open in the
application)
control signal for the microcontroller; leave open in the
application)
general purpose I/O
general purpose I/O
external crystal connection or input for an external clock
signal
external crystal connection; leave open if an external clock is
applied to XTAL1
reset input from the host (active HIGH); no integrated
pull-down resistor
interrupt output for test purpose; leave open in the
application
external interrupt input, or general purpose I/O; may be left
open if not used
transmission line for serial communication with the host
reception line for serial communication with the host
Low power single card reader
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
TDA8029
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