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TDA8029C1 Datasheet(PDF) 7 Page - NXP Semiconductors |
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TDA8029C1 Datasheet(HTML) 7 Page - NXP Semiconductors |
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7 / 58 page  2003 Oct 30 7 Philips Semiconductors Product specification Low power single card reader TDA8029 handbook, full pagewidth TDA8029HL FCE870 1 2 3 4 5 6 7 8 24 23 22 21 20 19 18 17 P17 P16 VDD GND SDWN_N CDEL I/O PRES P27 PSEN_N ALE EA_N TEST SAM PGND SBM Fig.2 Pin configuration. 8 FUNCTIONAL DESCRIPTION Throughout this specification, it is assumed that the reader is aware of ISO7816 norm terminology. 8.1 Microcontroller The embedded microcontroller is an 80C51FB with internal 16 kbytes ROM, 256 bytes RAM and 512 bytes XRAM. It has the same instruction set as the 80C51. The controller is clocked by the frequency present on pin 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 supply supervisor. The external interrupt INT0_N is used by the ISO UART, by the analog drivers and the ETU counters. It must be left open in the application. The second external interrupt INT1_N is available for the application. A general description as well as added features are described in this chapter. The added features to the 80C51 controller are similar to the 8XC51FB controller, except on the wake-up from Power-down mode, which is possible by a falling edge on INT0_N (card reader problem) or on INT1_N or on RX due to the addition of an extra delay counter and enable configuration bits within register UCR2 (see detailed description in Section 8.10.3.2). For any further information please refer to the published specification of the 8XC51FB in “Data Handbook IC20; 80C51-Based 8-bit Microcontrollers”. The controller has four 8-bit I/O ports, three 16-bit timer/event counters, a multi-source, four-priority-level, nested interrupt structure, an enhanced UART and on-chip oscillator and timing circuits. For systems that require extra memory capability up to 64 kbytes, it can be expanded using standard TTL-compatible memories and logic. |
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