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TDA8029 Folha de dados(PDF) 9 Page - NXP Semiconductors |
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TDA8029 Folha de dados(HTML) 9 Page - NXP Semiconductors |
9 / 59 page 9397 750 14145 © Koninklijke Philips Electronics N.V. 2005. All rights reserved. Product data sheet Rev. 03 — 22 February 2005 9 of 59 Philips Semiconductors TDA8029 Low power single card reader [1] SFRs are bit addressable. [2] SFRs are modified from or added to the 80C51 SFRs. [3] RESET value depends on reset source. [4] Bit will not be affected by RESET. 8.1.1 Port characteristics Port 0 (P0.7 to P0.0): Port 0 is an open-drain, bidirectional I/O timer 2 generated commonly used baud rates port. Port 0 pins that have logic 1s written to them float and can be used as high-impedance inputs. Port 0 is also the multiplexed low-order address and data bus during access to external program and data memory. In this application, it uses strong internal pull-ups when emitting logic 1s. Port 0 also outputs the code bytes during program verification and received code bytes during EPROM programming. External pull-ups are required during program verification. Port 1 (P1.7 to P1.0): Port 1 is an 8-bit bidirectional I/O-port with internal pull-ups. Port 1 pins that have logic 1s written to them are pulled HIGH by the internal pull-ups and can be used as inputs. As inputs, port 1 pins that are externally RACAP2L [2] timer 2 capture low CA - - - ---- - 0000 0000 SADDR [2] slave address A9 - - - ---- - 0000 0000 SADEN [2] slave address mask B9 - - - ---- - 0000 0000 SBUF serial data buffer 99 - - - ---- - xxxx xxxx SCON [1] serial control 98 SM0/FE SM1 SM2 REN TB8 RB8 TI RI 0000 0000 9F 9E 9D 9C 9B 9A 99 98 SP stack pointer 81 0000 0111 TCON [1] timer control 88 TF1 TR1 TF0 TE0 IE1 IT1 IE0 IT0 0000 0000 8F 8E 8D 8C 8B 8A 89 88 T2CON [1] timer 2 control C8 TF2 EXF2 RCLK TCLK EXEN2 TR2 C/T2 CP/RL2 0000 0000 CF CE CD CC CB CA C9 C8 T2MOD [2] timer 2 mode control C9 - - - - - - T2OE DCEN xxxx xx00 TH0 timer high 0 8C - - - ---- - 0000 0000 TH1 timer high 1 8D - - - ---- - 0000 0000 TH2 [2] timer high 2 CD - - - ---- - 0000 0000 TL0 timer low 0 8A - - - ---- - 0000 0000 TL1 timer low 1 8B - - - ---- - 0000 0000 TL2 [2] timer low 2 CC - - - ---- - 0000 0000 TMOD timer mode 89 GATE C/TM1 M0GATE C/T M1 M0 0000 0000 Table 5: Embedded C51 controller special function registers …continued Symbol Description Addr (hex) Bit address, symbol or alternative port function Reset value (binary) |
Nº de peça semelhante - TDA8029 |
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Descrição semelhante - TDA8029 |
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